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  • Question 1 - A patient in their mid-40s wakes up experiencing severe pain, redness, and swelling...

    Correct

    • A patient in their mid-40s wakes up experiencing severe pain, redness, and swelling at the base of their big toe.

      What is the most suitable course of treatment for this patient?

      Your Answer: Indomethacin

      Explanation:

      NSAIDs for Gout Treatment

      Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly used to treat acute attacks of gout. Among the NSAIDs, indomethacin is the most frequently prescribed due to its potent anti-inflammatory properties. However, it is important to note that aspirin and aspirin-containing products should be avoided during acute gout attacks as they can actually trigger or worsen the condition. Therefore, it is crucial to consult with a healthcare provider before taking any medication for gout, especially during an acute attack. Proper use of NSAIDs can help alleviate the pain and inflammation associated with gout, improving the patient’s quality of life.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 2 - A 35-year-old nun is seen in the Rheumatology Clinic every year for her...

    Correct

    • A 35-year-old nun is seen in the Rheumatology Clinic every year for her long-standing seropositive arthritis affecting her hands, knees, and hips. Her arthritis is linked to another chronic condition she also experiences.

      Your Answer: Systemic lupus erythematosus (SLE) arthritis

      Explanation:

      Seropositive and Seronegative Arthritis: Types and Characteristics

      Seropositive arthritis is characterized by the presence of rheumatoid factor, an antibody targeted against the Fc portion of immunoglobulins. While rheumatoid factor can be present in systemic lupus erythematosus (SLE), seropositive SLE generally indicates more severe disease progression. On the other hand, reactive arthritis, psoriatic arthritis, ankylosing spondylitis, and enteropathic arthritis are all seronegative arthritis, meaning that rheumatoid factor is classically not present.

      Reactive arthritis is usually precipitated by a gastrointestinal or genitourinary infection occurring before the onset of arthritic symptoms. The classic triad of reactive arthritis is conjunctivitis, asymmetric oligoarthritis, and urethritis. The condition may be self-limiting, but in some patients, it may become chronic or recur frequently.

      Psoriatic arthritis is classically found in patients with psoriasis, but in around 1 in 6 people, it may present many years before psoriatic skin symptoms. Ankylosing spondylitis, on the other hand, is a chronic disorder of an inflammatory nature characterized by sacroiliac joint involvement and linked to the HLA-B27 antigen. Enteropathic arthritis is associated with inflammatory bowel disease and can affect any joint, but it most commonly affects the spine and lower limb joints. Approximately 1 in 5 people with inflammatory bowel disease will develop the condition.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 3 - A 72-year-old man presents for review, complaining of pain in his knees. There...

    Incorrect

    • A 72-year-old man presents for review, complaining of pain in his knees. There is also stiffness in his fingers and he finds it difficult to use his computer. There is a history of hypertension, for which he takes amlodipine 10 mg, and type II diabetes, for which he takes metformin. He had been given a diagnosis of ulcerative colitis some years ago but has had no recent symptoms. On examination, he has a body mass index (BMI) of 34; blood pressure is 150/90 mmHg, and he has swelling and bony deformity of both knees. There is crepitus and anterior knee pain on flexion. Examination of the hands reveals Heberden’s nodes.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 120 g/dl 115–155 g/l
      White cell count (WCC) 5.8 × 109/l 4–11 × 109/l
      Platelets 240 × 109/l 150–400 × 109/l
      Erythrocyte sedimentation rate 12 mm/h 0–10mm in the 1st hour
      Rheumatoid factor Negative
      Sodium (Na+) 142 mmol/l 135–145 mmol/l
      Potassium (K+) 4.7 mmol/l 3.5–5.0 mmol/l
      Creatinine 130 μmol/l 50–120 µmol/l
      X-ray of both knees reveals reduced joint space, subchondral sclerosis and cyst formation and osteophytes within the joint space.
      Which of the following fits best with the diagnosis?

      Your Answer: Seronegative arthritis

      Correct Answer: Osteoarthritis

      Explanation:

      The woman in the picture appears to have osteoarthritis, which is commonly seen in overweight individuals affecting weight-bearing joints like the knees. The changes in her hands also suggest osteoarthritis. Treatment options include weight reduction, pain relief medication like paracetamol or non-steroidal anti-inflammatory drugs (NSAIDs), physiotherapy, or knee replacement surgery. Rheumatoid arthritis is unlikely as her ESR and rheumatoid factor are normal. Seronegative arthritis is also unlikely as it is associated with raised inflammatory markers, which are not present in this case. Enteropathic arthropathy is unlikely as there are no recent symptoms of inflammatory bowel disease. Osteoporosis is not a likely diagnosis as it does not cause knee or finger pain, but rather presents following a fracture.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 4 - A 65-year-old woman complains of discomfort at the base of her left thumb....

    Correct

    • A 65-year-old woman complains of discomfort at the base of her left thumb. The right first carpometacarpal joint is swollen and tender.
      What could be the probable diagnosis?

      Your Answer: Osteoarthritis

      Explanation:

      Common Hand and Wrist Pathologies

      The hand and wrist are common sites of pathology, particularly in postmenopausal women. Osteoarthritis frequently affects the first carpometacarpal joint, causing tenderness, stiffness, crepitus, swelling, and pain on thumb abduction. This can lead to squaring of the hand, radial subluxation of the metacarpal, and atrophy of the thenar muscles.

      Scaphoid fractures are also relatively common, often resulting from a fall onto an outstretched hand. The proximal portion of the scaphoid lacks its own blood supply, which can lead to avascular necrosis if a fracture isolates it from the rest of the bone. This produces pain and tenderness on the radial side of the wrist, typically in the anatomical snuffbox, worsened by wrist movement.

      De Quervain’s tenosynovitis is another common pathology, characterized by stenosing tenosynovitis of the first dorsal compartment of the wrist. It presents with pain, swelling, and tenderness on the radial aspect of the wrist. Treatment typically involves splinting, with or without corticosteroid injection.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 5 - A 50-year-old woman visits the Rheumatology Clinic seeking modification of her DMARDs for...

    Incorrect

    • A 50-year-old woman visits the Rheumatology Clinic seeking modification of her DMARDs for the treatment of her rheumatoid arthritis. She is informed that she will require frequent liver checks and eye exams due to the potential side-effects of these medications. What is the most probable combination of treatment she will receive for her condition?

      Your Answer: Sulfasalazine plus hydroxychloroquine

      Correct Answer: Methotrexate plus hydroxychloroquine

      Explanation:

      Medication Combinations for Treating Rheumatoid Arthritis

      When treating rheumatoid arthritis, the first-line medication is a DMARD monotherapy with methotrexate. Short-term steroids may also be used in combination with DMARD monotherapy to induce remission. Hydroxychloroquine is another medication that can be used, but patients should be closely monitored for visual changes as retinopathy and corneal deposits are common side effects.

      Etanercept is not a first-line treatment for rheumatoid arthritis, and methotrexate should not be given in combination with a TNF-alpha inhibitor like etanercept. Methotrexate plus sulfasalazine is an appropriate medication combination for treating rheumatoid arthritis, but regular eye checks are not required as neither medication affects vision.

      If a patient has failed treatment with methotrexate, sulfasalazine plus hydroxychloroquine may be a regimen to consider trialling. However, it is important to note that new-onset rheumatoid arthritis should be treated with a DMARD monotherapy first line, with the addition of another DMARD like methotrexate as the first-line option.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 6 - A 61-year-old woman comes to the clinic with complaints of warm, swollen, and...

    Incorrect

    • A 61-year-old woman comes to the clinic with complaints of warm, swollen, and painful knuckles, as well as large subcutaneous nodules near her elbows. She also reports experiencing joint stiffness lasting more than an hour in the morning. Upon examination, her PIP joints are hyperextended, and her DIP joints are flexed. If a biopsy were performed on the nodules, what would be the most likely histological appearance?

      Your Answer: Well-encapsulated nodule of polygonal cells within a tendon sheath

      Correct Answer: Fibrinoid necrosis surrounded by palisading epithelioid cells

      Explanation:

      Differentiating Connective Tissue Pathologies: Histological Characteristics

      Connective tissue pathologies can present with a variety of clinical features, making it important to understand their histological characteristics for accurate diagnosis.

      Rheumatoid arthritis is characterized by swan neck deformity, subcutaneous nodules, and enlarged knuckles. The histological composition of subcutaneous nodules is areas of fibrinoid necrosis surrounded by palisading epithelioid cells.

      Gouty tophi, on the other hand, present as an amorphous crystalline mass surrounded by macrophages.

      A cystic space caused by myxoid degeneration of connective tissue is more typical of a ganglion cyst.

      Nodular tenosynovitis is a well-encapsulated nodule of polygonal cells within a tendon sheath.

      Lastly, pigmented villonodular synovitis is characterized by a darkly pigmented synovium with an exuberant, villous growth.

      Understanding the histological characteristics of these connective tissue pathologies can aid in accurate diagnosis and appropriate management.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 7 - A woman in her 20s starts experiencing consistent lower back pain and stiffness...

    Incorrect

    • A woman in her 20s starts experiencing consistent lower back pain and stiffness that improves with physical activity. As she enters her 30s, she develops arthritis in her hips and shoulders, and by her 40s, she notices reduced mobility in her lumbar spine. She has no significant medical issues. What condition is most commonly associated with these symptoms?

      Your Answer: Osteoarthritis

      Correct Answer: Ankylosing spondylitis

      Explanation:

      The symptoms described suggest a diagnosis of ankylosing spondylitis, a chronic form of seronegative spondyloarthropathy that primarily affects the axial skeleton. Diagnosis is made using the modified New York criteria, which includes clinical and radiological criteria. HLA-B27 and sacroiliitis on MRI play a major role in the recently proposed ASAS diagnostic algorithm. Radiographic sacroiliitis is required for eligibility for anti-TNF treatment. Other conditions, such as pseudogout, Lyme disease, osteoarthritis, and rheumatoid arthritis, are unlikely diagnoses. Timely diagnosis requires a high index of suspicion.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 8 - A 38-year-old woman presents to the clinic with symmetrical polyarthritis affecting her fingers,...

    Correct

    • A 38-year-old woman presents to the clinic with symmetrical polyarthritis affecting her fingers, wrists and elbows. She also reports significant morning stiffness which lasts for up to 90 minutes and is finding it very difficult to get up for work in the morning. There is a history of deep vein thrombosis during her second pregnancy, but no other significant past medical history. Her only medication of note is the oral contraceptive pill.
      On examination, she has evidence of active synovitis affecting her wrists and the small joints of her fingers.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 121 g/l 115–155 g/l
      White cell count (WCC) 8.1 × 109/l 4–11 × 109/l
      Platelets 193 × 109/l 150–400 × 109/l
      Sodium (Na+) 139 mmol/l 135–145 mmol/l
      Potassium (K+) 4.5 mmol/l 3.5–5.0 mmol/l
      Creatinine 110 μmol/l 50–120 µmol/l
      Rheumatoid factor Positive
      Anti-nuclear factor Weakly positive
      Which of the following is the most likely diagnosis?

      Your Answer: Rheumatoid arthritis

      Explanation:

      Diagnosing Rheumatoid Arthritis: Differential Diagnosis

      Rheumatoid arthritis is a common autoimmune disorder that affects the joints, causing morning stiffness and small joint polyarthritis. A positive rheumatoid factor is present in 70% of patients, while anti-CCP antibodies are highly specific for rheumatoid arthritis and can be useful in rheumatoid factor-negative cases.

      Other conditions that may present with similar symptoms include systemic lupus erythematosus (SLE), antiphospholipid antibody syndrome, seronegative arthritis, and polymyalgia rheumatica. However, in this case, there are no other features to suggest SLE, one episode of deep vein thrombosis during pregnancy is insufficient to suggest antiphospholipid antibody syndrome, the patient is seropositive for rheumatoid factor ruling out seronegative arthritis, and there is no story of proximal muscle pain which could be suggestive of polymyalgia rheumatica. Therefore, the diagnosis of rheumatoid arthritis is most likely.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 9 - A 65-year-old woman presents with a one-month history of non-specific malaise. She reports...

    Incorrect

    • A 65-year-old woman presents with a one-month history of non-specific malaise. She reports stiffness, particularly in the mornings, and difficulty lifting her arms to comb her hair. She experiences constant aching in her arms and shoulders and jaw pain when chewing. She has also lost 4 kg in weight and has a persistent headache. She smokes 10 cigarettes a day and drinks 10 units of alcohol per week. On examination, her temperature is 38°C, pulse is 84 beats/min, and BP is 125/80 mmHg. Investigations reveal abnormal blood results. What is the most appropriate next step in her evaluation?

      Your Answer: Anti-double stranded DNA antibodies

      Correct Answer: Erythrocyte sedimentation rate

      Explanation:

      Polymyalgia Rheumatica/Temporal arthritis: Symptoms and Importance of Diagnosis

      Polymyalgia rheumatica/temporal arthritis is a condition that may present with predominantly polymyalgia symptoms such as proximal muscle pain, stiffness, or arthritis symptoms such as headaches, scalp tenderness, and jaw claudication. It is also common for the condition to have systemic involvement, including fever, malaise, and weight loss. One of the key indicators of this condition is a very high ESR.

      The main reason for diagnosing and treating polymyalgia rheumatica/temporal arthritis is to prevent blindness. This condition can cause inflammation in the blood vessels that supply the eyes, leading to vision loss. Therefore, early diagnosis and treatment are crucial to prevent this complication.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 10 - What is the most probable diagnosis for a 70-year-old woman who presents with...

    Incorrect

    • What is the most probable diagnosis for a 70-year-old woman who presents with bilateral shoulder pain and stiffness, fatigue, weight loss, and elevated ESR levels?

      Your Answer: Rheumatoid arthritis

      Correct Answer: Polymyalgia rheumatica (PMR)

      Explanation:

      Differentiating between Rheumatic Diseases: A Case Study

      Polymyalgia rheumatica (PMR) is a common inflammatory rheumatic disease in the elderly population, presenting as pain and stiffness in the neck, shoulders, upper arms, and hips. In contrast, polymyositis is an autoimmune connective tissue disease that results in proximal muscle weakness. Multiple myeloma is a malignancy of plasma cells, causing bone pain, renal failure, and anaemia. Rheumatoid arthritis is a chronic inflammatory, symmetrical polyarthropathy that tends to cause joint stiffness and pain within the small joints, as well as causing fatigue. Osteoarthritis is a degenerative arthritis that commonly affects the knee, hip, spine, and hands.

      In this case study, the patient presented with shoulder stiffness, fatigue, low-grade fever, and anaemia. A diagnosis of PMR was made clinically and with the aid of a raised ESR. Treatment is with oral prednisolone, which should be reduced gradually once symptoms are controlled to avoid the risks of chronic steroid use.

      It is important to differentiate between these rheumatic diseases as they have different underlying causes, presentations, and treatments. A thorough history, physical examination, and appropriate investigations are necessary for accurate diagnosis and management.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 11 - A 68-year-old man visits his doctor's office, reporting a recent onset of a...

    Incorrect

    • A 68-year-old man visits his doctor's office, reporting a recent onset of a red, swollen, and hot great left toe. He denies any injury to the toe and has a medical history of hypertension, which is being treated with a single medication. The doctor suspects acute gout as the diagnosis.
      What medication is most likely responsible for triggering the acute gout?

      Your Answer: Colchicine

      Correct Answer: Bendroflumethiazide

      Explanation:

      Understanding Gout and its Causes: A Review of Medications and Differential Diagnosis

      Gout is a type of inflammatory arthritis caused by the deposition of urate crystals in the joint. This article reviews the causes of gout, which can be primary or secondary hyperuricaemia. Secondary hyperuricaemia can be caused by overproduction or decreased renal excretion, including the use of thiazide diuretics like bendroflumethiazide. The differential diagnosis for an acute red, hot swollen joint includes septic arthritis, gout, pseudogout, inflammatory monoarthritis, and post-traumatic causes. Treatment for gout includes medications for chronic and acute gout, such as non-steroidal anti-inflammatory drugs, colchicine, or prednisolone. This article also discusses the effects of medications like colchicine, propranolol, lisinopril, and moxonidine on gout and other conditions.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 12 - A previously healthy 60-year-old hypertensive teacher complains of pain, redness, and swelling in...

    Incorrect

    • A previously healthy 60-year-old hypertensive teacher complains of pain, redness, and swelling in the left knee that began 10 hours ago. The patient has a family history of hypertension and joint issues. What is the most crucial investigation to determine the cause of the knee symptoms?

      Your Answer: Radiology

      Correct Answer: Joint aspiration for microscopy and culture

      Explanation:

      Importance of Joint Aspiration in Identifying the Cause of Acute Monoarthropathy

      When a patient presents with acute monoarthropathy, it is important to identify the cause of their symptoms. The most important investigation in this case is joint aspiration. This procedure involves taking a sample of fluid from the affected joint and examining it under a microscope to identify any infective organisms. This is crucial in cases where septic arthritis is suspected, as appropriate therapy can be guided based on the results. On the other hand, if the cause is gout, joint aspiration can reveal the presence of crystals in the fluid. X-rays are of no value in septic arthritis as they only become abnormal following joint destruction. Therefore, joint aspiration is the most important investigation in identifying the cause of acute monoarthropathy.

    • This question is part of the following fields:

      • Rheumatology
      19.2
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  • Question 13 - A 32-year-old woman fell off her horse while horse-riding and is now experiencing...

    Incorrect

    • A 32-year-old woman fell off her horse while horse-riding and is now experiencing severe foot pain. Her foot was trapped in the stirrup during the fall. An x-ray revealed displacement of her second and third metatarsal from the tarsus. What is the name of this injury?

      Your Answer: March Fracture

      Correct Answer: Lisfranc Injury

      Explanation:

      Common Foot Injuries and Their Characteristics

      Lisfranc injury is a type of foot injury that occurs when one or more metatarsal bones are displaced from the tarsus. This injury is usually caused by excessive kinetic energy being placed on the midfoot, such as in a traffic collision. There are two types of Lisfranc injuries: direct and indirect. A direct injury occurs when the foot is crushed by a heavy object, while an indirect injury occurs when there is sudden rotational force on a plantar flexed foot.

      March fracture is another common foot injury that is caused by repetitive stress on the distal third of one of the metatarsal bones. This injury is often seen in soldiers and hikers who walk long distances. The onset of foot pain is gradual and progressive, and there is often trauma associated with it.

      Hallux Rigidus is a degenerative arthritis that causes bone spurs at the metatarsophalangeal joint of the big toe, making it painful and stiff. Jones fracture is a fracture in the meta-diaphyseal junction of the fifth metatarsal of the foot. Proximal fifth metatarsal avulsion fracture is caused by forcible inversion of the foot in plantar flexion, such as when stepping on a kerb or climbing steps.

      These different foot injuries have their own unique characteristics and causes. these injuries can help individuals take preventative measures to avoid them and seek appropriate treatment if necessary.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 14 - A 50-year-old woman presents with complaints of fatigue. She reports experiencing dysphagia, a...

    Incorrect

    • A 50-year-old woman presents with complaints of fatigue. She reports experiencing dysphagia, a dry mouth, a gritty feeling in her eyes, and heightened sensitivity to light.
      What is the probable diagnosis?

      Your Answer: Hepatitis C virus infection

      Correct Answer: Sjögren syndrome

      Explanation:

      Comparison of Symptoms: Sjögren Syndrome, Haemochromatosis, Hepatitis C Virus Infection, Oesophageal Carcinoma, and Polymyositis

      Sjögren syndrome is a condition that causes inflammation and destruction of exocrine glands, resulting in dry and gritty eyes, dry mouth, photosensitivity, fatigue, and joint pain. Patients may also experience excessive watering or deposits of dried mucous in the corner of the eye, recurrent attacks of conjunctivitis, and parotid swelling. On examination, xerostomia can be detected as a diminished salivary pool, a dried fissured tongue, and chronic oral candidiasis.

      Haemochromatosis, on the other hand, is characterized by a pigmented (tanned) appearance and may cause dry mouth and thirst due to diabetes.

      Hepatitis C virus infection can be associated with a secondary Sjögren syndrome, but there is no indication of this in the question.

      Oesophageal carcinoma is unlikely to cause ocular symptoms.

      Polymyositis does not present with any history of muscle weakness.

      In summary, while some symptoms may overlap between these conditions, a thorough examination and medical history are necessary to accurately diagnose and differentiate them.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 15 - A 54-year-old man was diagnosed with rheumatoid arthritis and started on methotrexate. After...

    Incorrect

    • A 54-year-old man was diagnosed with rheumatoid arthritis and started on methotrexate. After six months, there was no improvement. He was switched to a combination of methotrexate and sulfasalazine, but there was still no improvement after a similar period of therapy.
      What is the most effective treatment option at this point?

      Your Answer: Leflunomide

      Correct Answer: Infliximab plus methotrexate

      Explanation:

      Treatment Options for Rheumatoid Disease: A Comparison of Biological Therapies and DMARDs

      Rheumatoid disease can be a debilitating condition that requires careful management. When standard disease-modifying anti-rheumatic drugs (DMARDs) fail to provide relief, biological therapies may be prescribed. Infliximab, adalimumab, and etanercept are some of the contemporary biological therapies available. Infliximab, in particular, is often co-prescribed with methotrexate, although it may cause a reversible lupus-like syndrome and tuberculosis reactivation.

      Combining gold, leflunomide, and methotrexate is unlikely to help patients who have already failed DMARD therapy. Azathioprine may be considered in severe cases, but biological therapy is the preferred treatment when intensive DMARD therapy fails. The combination of gold and penicillamine is a viable option for patients who meet the criteria for biological therapy, according to National Institute for Health and Care Excellence (NICE) guidelines. DMARD monotherapy, such as leflunomide, is only recommended when dual therapy is contraindicated.

      In summary, the choice of treatment for rheumatoid disease depends on the severity of the condition and the patient’s response to previous therapies. Biological therapies may offer relief for patients who have failed DMARD therapy, but careful monitoring for potential side effects is necessary.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 16 - A 25-year-old intravenous drug user (ivDU) comes in with a swollen and painful...

    Incorrect

    • A 25-year-old intravenous drug user (ivDU) comes in with a swollen and painful right knee. Upon examination, there is joint effusion and pyrexia, and frank pus is aspirated. What is the most probable infecting organism?

      Your Answer: Pseudomonas spp

      Correct Answer: Staphylococcus aureus

      Explanation:

      Common Organisms in Septic Arthritis

      Septic arthritis is a serious condition that occurs when a joint becomes infected. The most common organism causing septic arthritis is Staphylococcus aureus. Pseudomonas spp can also cause septic arthritis, but it is less likely than S. aureus, especially in intravenous drug users. Escherichia coli is another pathogen that can cause septic arthritis, but it is less common than S. aureus. In children under the age of two, Haemophilus influenzae is the most common organism causing septic arthritis. Neisseria gonorrhoeae is a common cause of arthritis in the United States, but it is uncommon in Western Europe. It is important to identify the causative organism in order to provide appropriate treatment for septic arthritis.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 17 - A 78-year-old retired general practitioner (GP) has been experiencing increasing swelling and tenderness...

    Incorrect

    • A 78-year-old retired general practitioner (GP) has been experiencing increasing swelling and tenderness of the right knee. Symptoms have been progressively worsening over four days. There is no history of trauma, and he has had no similar symptoms previously. The patient suspects that he may have pseudogout of the knee.
      What is the most common tissue for calcium pyrophosphate crystal deposition in patients with pseudogout?

      Your Answer: Cartilage

      Correct Answer: Synovium

      Explanation:

      Sites of Crystal Deposition in Pseudogout

      Pseudogout is a condition characterized by the deposition of calcium pyrophosphate dihydrate (CPPD) crystals in various tissues of the body. The most common site of deposition is the synovial fluid, which can lead to joint inflammation and pain. However, CPPD crystals can also be deposited in other tissues such as cartilage, ligaments, tendons, and bursae.

      Cartilage is another common site for CPPD crystal deposition, and pseudogout is also known as chondrocalcinosis. Deposition in the ligaments and tendons is possible but less common than in the synovium. Bursae deposition is also possible but less common than synovium deposition.

      In summary, while CPPD crystals can be deposited in various tissues in pseudogout, the synovium is the most common site of deposition, followed by cartilage, ligaments, tendons, and bursae.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 18 - A 55-year-old carpet layer presented with acute pain and swelling affecting his left...

    Correct

    • A 55-year-old carpet layer presented with acute pain and swelling affecting his left knee. There is no history of trauma. Past medical history includes haemochromatosis for which he receives regular venesection.
      Examination reveals a hot, tender, swollen left knee.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 135 g/l 135–175 g/l
      White cell count (WCC) 4.0 × 109/l 4–11 × 109/l
      Platelets 200 × 109/l 150–400 × 109/l
      Erythrocyte sedimentation rate (ESR) 12 mm/h 0–10mm in the 1st hour
      Sodium (Na+) 139 mmol/l 135–145 mmol/l
      Potassium (K+) 5.0 mmol/l 3.5–5.0 mmol/l
      Creatinine 120 μmol/l 50–120 µmol/l
      Knee aspirate: 12 000 white blood cells/ml (majority neutrophils); rhomboid-shaped, weakly positively birefringent crystals. No growth on culture.
      Which of the following is the most likely diagnosis in this case?

      Your Answer: Pseudogout

      Explanation:

      Differential Diagnosis for Knee Aspirate: Pseudogout, Gout, prepatellar Bursitis, Septic Arthritis, Osteoarthritis

      A knee aspirate was performed on a patient who presented with knee pain. The aspirate revealed positively birefringent calcium pyrophosphate crystals, indicating pseudogout. This condition is associated with haemochromatosis and can be treated with non-steroidal anti-inflammatory agents, corticosteroid injections, or short courses of oral corticosteroids. Colchicine may also be an option for some patients. Familial pyrophosphate arthropathy, a rare form of the condition, may be linked to mutations in genes related to inorganic phosphate transport.

      Gout is a differential diagnosis for this case, but the knee aspirate would reveal negatively birefringent crystals. prepatellar bursitis, a sterile condition not associated with crystals or raised white cell counts, can be ruled out. Septic arthritis would present with a systemic inflammatory response and rhomboid-shaped birefringent crystals would not be present. Osteoarthritis is a chronic condition and would not present acutely, and joint aspirate would not show rhomboid-shaped birefringent crystals.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 19 - A 30-year-old white man comes to his general practitioner complaining of progressive low...

    Correct

    • A 30-year-old white man comes to his general practitioner complaining of progressive low back pain over the past four years. The pain is worse at night when he lies down and improves as he moves around during the day, but it does not go away with rest. Upon further questioning, he reports having experienced three episodes of acute eye pain with sensitivity to light and blurry vision in the past two years. He sought treatment from an ophthalmologist, and the symptoms resolved with steroids and eye drops. X-rays reveal some inflammatory and arthritic changes in the sacroiliac joints. Despite treatment, the disease has continued to progress, and ten years later, x-rays show calcification of the anterior spinal ligament. What is the most likely positive finding in this patient?

      Your Answer: HLA-B27

      Explanation:

      Understanding HLA and Autoimmune Diseases

      HLA-B27 is a genetic marker associated with ankylosing spondylitis, an autoimmune disease that primarily affects the spine. This disease is more common in males and typically presents in the 20s and 30s. Other autoimmune manifestations, such as anterior uveitis, can also occur in individuals with HLA-B27. Additionally, young men with this genetic marker may be prone to reactive arthritis after chlamydia or gonorrhoeal urethritis.

      Rheumatoid factor, on the other hand, is not associated with HLA-B27 or ankylosing spondylitis. While stiffness that improves with exercise may be seen in rheumatoid arthritis, this disease typically affects peripheral joints and does not lead to calcification of the anterior spinal ligament.

      Other HLA markers are associated with different autoimmune diseases. HLA-DR3 is linked to type 1 diabetes mellitus, HLA-DR5 is associated with pernicious anaemia and Hashimoto’s thyroiditis, and HLA-B8 is linked to Graves’ disease. Understanding these genetic markers can aid in the diagnosis and management of autoimmune diseases.

    • This question is part of the following fields:

      • Rheumatology
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  • Question 20 - An 81-year-old woman presents to Accident and Emergency with recurrent chest infections over...

    Incorrect

    • An 81-year-old woman presents to Accident and Emergency with recurrent chest infections over the last year. She has suffered from rheumatoid arthritis for a long time and is on methotrexate and sulfasalazine. On examination, there are some crepitations at the right lung base and splenomegaly. She has some abnormal discolouration on her legs.
      Full blood counts showed:
      Investigation Result Normal value
      Haemoglobin (Hb) 96 g/l 115–155 g/l
      White cell count (WCC) 3.2 × 109/l 4–11 × 109/l
      Neutrophils 0.8 × 109/l 1.7–7.5 × 109/l
      Lymphocytes 1.5 × 109/l 1.0–4.5 × 109/l
      Eosinophils 0.6 × 109/l 0.0–0.4 × 109/l
      Which of the following is the most likely diagnosis?

      Your Answer: Side-effects from methotrexate

      Correct Answer: Felty syndrome

      Explanation:

      Differential diagnosis for a patient with rheumatoid arthritis, splenomegaly, neutropenia, and skin changes

      Felty syndrome and other potential diagnoses

      Felty syndrome is a rare complication of rheumatoid arthritis that affects about 1% of patients. It is characterized by the presence of three main features: splenomegaly (enlarged spleen), neutropenia (low white blood cell count), and recurrent infections. Skin changes on the lower limbs, such as ulcers or nodules, are also common in Felty syndrome. The exact cause of this syndrome is unknown, but it is thought to be related to immune dysregulation and chronic inflammation.

      Other conditions that may present with similar symptoms include chronic lymphocytic leukemia (CLL), non-Hodgkin’s lymphoma, Hodgkin’s lymphoma, and drug-induced neutropenia. CLL is a type of blood cancer that affects mainly older adults and causes the accumulation of abnormal lymphocytes in the blood, bone marrow, and lymph nodes. However, in this case, the patient’s white blood cell count is low, which is not typical of CLL. Non-Hodgkin’s lymphoma and Hodgkin’s lymphoma are types of cancer that affect the lymphatic system and may cause lymphadenopathy (enlarged lymph nodes), fever, night sweats, and weight loss. However, there is no evidence of lymph node involvement or systemic symptoms in this scenario.

      Drug-induced neutropenia is a potential side effect of methotrexate, which is a commonly used medication for rheumatoid arthritis. However, splenomegaly is not a typical feature of methotrexate toxicity, and respiratory complications are more common than hematological ones. Therefore, the most likely diagnosis in this case is Felty syndrome, which requires close monitoring and management of the underlying rheumatoid arthritis. In severe cases, splenectomy (surgical removal of the spleen) may be considered to improve neutropenia and reduce the risk of infections.

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      • Rheumatology
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  • Question 21 - What is impacted by Heberden's arthropathy? ...

    Incorrect

    • What is impacted by Heberden's arthropathy?

      Your Answer: Symmetrically large joints

      Correct Answer: Distal interphalangeal joints

      Explanation:

      Heberden’s Nodules

      Heberden’s nodules are bony growths that form around the joints at the end of the fingers. These nodules are most commonly found on the second and third fingers and are caused by calcification of the cartilage in the joint. This condition is often associated with osteoarthritis and is more common in women. Heberden’s nodules typically develop in middle age.

      Overall, Heberden’s nodules can be a painful and uncomfortable condition for those who experience them. However, the causes and symptoms of this condition can help individuals seek appropriate treatment and manage their symptoms effectively. With proper care and attention, it is possible to minimize the impact of Heberden’s nodules on daily life.

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      • Rheumatology
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  • Question 22 - A 35-year-old man presents to the outpatient department with complaints of lower back...

    Incorrect

    • A 35-year-old man presents to the outpatient department with complaints of lower back pain. He used to be an active soccer player but has had to give up due to the pain.

      During the examination, there is no skin rash or history of gastrointestinal or genitourinary symptoms. The patient reports difficulty standing straight and walking in a stooped position for hours each morning before being able to stand up straight. Additionally, there is redness and pain around the right heel, and Schober's test is positive.

      What abnormalities may be found on the patient's ECG?

      Your Answer: A-V dissociation

      Correct Answer: A-V dissociation, deep S in V1 and tall R in V5

      Explanation:

      Ankylosing Spondylitis and Cardiac Manifestations

      Ankylosing spondylitis (AS) is a systemic disorder that affects multiple systems in the body. One of the extra-articular manifestations of AS is cardiac involvement, which can lead to heart block and aortic regurgitation. Chronic aortic regurgitation can cause left ventricular hypertrophy, resulting in deep S in V1 and tall R in V5. A-V dissociation is the ECG manifestation of heart block. Mortality rates are higher in patients with AS, with circulatory disease being the most common cause of death.

      P-pulmonale is not a typical manifestation of AS, but it can occur in cases of pulmonary hypertension when the right atrium is enlarged. Pulmonary fibrosis, which can occur in AS, can theoretically lead to pulmonary hypertension and p-pulmonale. Right bundle branch block is a non-specific ECG finding that can occur without any heart disease or in conditions such as atrial septal defect, ischemic heart disease, or pulmonary embolism.

      In conclusion, AS is a systemic disorder that can affect multiple systems in the body, including the heart. Cardiac involvement can lead to heart block and aortic regurgitation, which can cause left ventricular hypertrophy. Mortality rates are higher in patients with AS, with circulatory disease being the most common cause of death. While p-pulmonale is not a typical manifestation of AS, it can occur in cases of pulmonary hypertension. Right bundle branch block is a non-specific ECG finding that can occur in various conditions.

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      • Rheumatology
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  • Question 23 - A 27-year-old construction worker complains of worsening pain in his feet over the...

    Incorrect

    • A 27-year-old construction worker complains of worsening pain in his feet over the past two weeks, describing it as feeling like he is walking on gravel. He also reports experiencing lower back pain.

      The patient recently returned from a trip to Spain two months ago and recalls having a brief episode of urethral discharge, but did not seek medical attention for it.

      What is a possible diagnosis?

      Your Answer: Drug induced arthritis

      Correct Answer: Reactive arthritis

      Explanation:

      Reactive Arthritis

      Reactive arthritis is a medical condition that is characterized by a combination of symptoms including seronegative arthritis, urethritis, and conjunctivitis. The condition is often associated with sacroiliitis and painful feet, which reflects plantar fasciitis. Reactive arthritis is known to occur after gastrointestinal infections with Shigella or Salmonella, as well as following non-specific urethritis.

      Gonococcal arthritis, on the other hand, tends to occur in patients who are systemically unwell and have features of septic arthritis. It is important to note that reactive arthritis is not contagious and cannot be spread from one person to another.

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      • Rheumatology
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  • Question 24 - A 25-year-old man with inflammatory bowel disease has been experiencing lower back pain,...

    Correct

    • A 25-year-old man with inflammatory bowel disease has been experiencing lower back pain, stiffness, and buttock pain for the past six months. He notices that his pain improves after playing squash on Saturdays. He has tested positive for HLA-B27 and his blood tests, including C-reactive protein and erythrocyte sedimentation rate, are normal except for a mild hypochromic microcytic anemia. What is the most likely diagnosis?

      Your Answer: Ankylosing spondylitis

      Explanation:

      Understanding Different Types of Arthritis: Ankylosing Spondylitis, Osteoarthritis, Prolapsed Intervertebral Disc, Reactive Arthritis, and Rheumatoid Arthritis

      Ankylosing spondylitis is a type of arthritis that commonly affects the sacroiliac joints, causing pain and stiffness that improves with exercise. It may also involve inflammation of the colon or ileum, which can lead to inflammatory bowel disease in some cases. The presence of the HLA-B27 gene is often associated with ankylosing spondylitis. Osteoarthritis, on the other hand, is unlikely in younger individuals and is not linked to bowel disease. Prolapsed intervertebral disc is characterized by severe lower back pain and sciatica, but stiffness is not a typical symptom. Reactive arthritis is usually triggered by a recent GI illness or sexually transmitted infection and is associated with arthritis, a psoriatic type rash, and conjunctivitis. Finally, rheumatoid arthritis rarely affects the sacroiliac joints as the primary site. It is important to understand the differences between these types of arthritis to receive proper diagnosis and treatment.

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      • Rheumatology
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  • Question 25 - A 40-year-old farmer presents to the clinic with muscle pain in his lower...

    Incorrect

    • A 40-year-old farmer presents to the clinic with muscle pain in his lower back, calves and neck. He takes regular paracetamol but this has not helped his symptoms. For the past four weeks, he has become increasingly agitated and reports that he can no longer sleep for more than a few hours because the pain wakes him up. He feels increasingly lethargic and helpless. He also reports that as a result of his pain, he feels that his memory has worsened and he reports a low mood. A Kessler Psychological Distress Scale screening questionnaire is performed and he has a score of 30. His laboratory blood tests are unremarkable.
      What is the most appropriate treatment for this patient?

      Your Answer: Paracetamol

      Correct Answer: Duloxetine

      Explanation:

      Pharmacological Treatments for Fibromyalgia Pain: Choosing the Right Option

      Fibromyalgia is a chronic pain disorder that can be challenging to manage. Duloxetine, pregabalin, and tramadol are all appropriate pharmacological treatments for severe pain disturbance in fibromyalgia. However, the choice of which treatment to use depends on the patient’s co-morbidities, clinical presentation, and patient preference.

      In this case, the patient has comorbid low mood and possible depression, making duloxetine a reasonable choice. Venlafaxine, another serotonin and norepinephrine reuptake inhibitor, may be theoretically useful, but there is insufficient evidence for its use. Codeine and paracetamol have been shown to be ineffective in treating fibromyalgia pain.

      While psychotherapy may be considered for patients with pain-related depression and adverse coping mechanisms, it is not the correct answer for this patient. Overall, choosing the right pharmacological treatment for fibromyalgia pain requires careful consideration of the patient’s individual needs and circumstances.

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      • Rheumatology
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  • Question 26 - A 76-year-old woman, who was previously in good health, presents for review. For...

    Correct

    • A 76-year-old woman, who was previously in good health, presents for review. For the past 2–3 months, she has suffered from increasing pain and stiffness, particularly in the early part of the day, affecting her shoulders and, most recently, her hips. There has also been low-grade fever and she has lost 4 kg in weight. Examination reveals normal proximal muscle strength.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 111 g/l 115–155 g/l
      Mean corpuscular volume (MCV) 96 fl 76–98 fl
      White cell count (WCC) 6.1 × 109/l 4–11 × 109/l
      Platelets 345 × 109/l 150–400 × 109/l
      Erythrocyte sedimentation rate (ESR) 75 mm/h 0–10mm in the 1st hour
      Sodium (Na+) 140 mmol/l 135–145 mmol/l
      Potassium (K+) 5.0 mmol/l 3.5–5.0 mmol/l
      Creatinine 130 μmol/l 50–120 µmol/l
      Creatine kinase 31 IU/l 23–175 IU/l
      Alanine aminotransferase (ALT) 45 IU/l 5–30 IU/l
      Chest X-ray (CXR) Slight cardiomegaly, otherwise normal
      Which of the following is the most likely diagnosis?

      Your Answer: Polymyalgia rheumatica (PMR)

      Explanation:

      Differential Diagnosis for a Patient with Shoulder and Pelvic Girdle Pain

      Polymyalgia rheumatica (PMR) is a likely diagnosis for a patient presenting with shoulder and pelvic girdle pain without muscle weakness and a markedly raised ESR. Rapid improvement of symptoms with corticosteroids and a subsequent fall in ESR confirms the diagnosis. Temporal arthritis, a vasculitis associated with PMR, should also be considered in patients over 50 presenting with headache, vision loss, and jaw claudication. Myositis and dermatomyositis are less likely diagnoses due to the patient’s normal CK and lack of muscle weakness. Rheumatoid arthritis is unlikely given the patient’s age and the classic joint involvement pattern.

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      • Rheumatology
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  • Question 27 - A 49-year-old carpet layer presents to the clinic for review. He has been...

    Correct

    • A 49-year-old carpet layer presents to the clinic for review. He has been complaining of severe anterior knee pain for a few days. On examination, you notice that the left knee is warm and there is swelling on the patella. There is local pain on patellar pressure and pain with knee flexion.
      Investigations:
      Investigation Result Normal value
      Haemoglobin 131 g/l 135–175 g/l
      White cell count (WCC) 5.2 × 109/l 4–11 × 109/l
      Platelets 185 × 109/l 150–400 × 109/l
      Erythrocyte sedimentation rate (ESR) 12 mm/h 0–10mm in the 1st hour
      Knee aspirate: Gram stain negative for bacteria; fluid contains occasional white cells; culture is negative.
      Which of the following is the most likely diagnosis in this case?

      Your Answer: Pre–patellar bursitis

      Explanation:

      Differentiating Knee Conditions: A Case-Based Approach

      A patient presents with a red, tender, and inflamed knee. The differential diagnosis includes prepatellar bursitis, osteoarthritis, localised cellulitis, rheumatoid arthritis, and gout.

      prepatellar bursitis, also known as housemaid’s knee, carpet layer’s knee, or nun’s knee, is often caused by repetitive knee trauma. Treatment involves non-steroidal anti-inflammatory agents and local corticosteroid injection. Septic bursitis requires appropriate antibiotic cover and drainage.

      Osteoarthritis is a diagnosis of exclusion and does not typically cause a red, tender, inflamed knee. Knee aspirate in this case would not show white cells.

      Localised cellulitis may result in erythema but is unlikely to cause knee swelling. Knee aspirate in this case would not show white cells.

      Rheumatoid arthritis is unlikely to present in men of this age and typically affects small joints of the fingers, thumbs, wrists, feet, and ankles.

      Gout can be diagnosed through the presence of negatively birefringent crystals seen on joint microscopy.

      In conclusion, a thorough evaluation of the patient’s symptoms and appropriate diagnostic tests are necessary to differentiate between these knee conditions.

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      • Rheumatology
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  • Question 28 - A 27-year-old male presents with lower back pain and painful feet that feel...

    Incorrect

    • A 27-year-old male presents with lower back pain and painful feet that feel like walking on pebbles. He has been generally healthy, but he recently returned from a trip to Corfu where he had a diarrheal illness. He admits to infrequently taking ecstasy but takes no other medication. On examination, he has limited movement and pain in the sacroiliac joints and soreness in the soles of his feet upon deep palpation. What is the most probable diagnosis?

      Your Answer: Rheumatoid arthritis

      Correct Answer: Reactive arthritis

      Explanation:

      After a diarrhoeal illness, the patient may be at risk of developing reactive arthritis, which is a possible diagnosis for both sacroiliitis and plantar fasciitis. However, it is less likely to be related to inflammatory bowel disease (IBD) if there is only one acute episode of diarrhoea.

      Sacroiliitis is a condition that affects the sacroiliac joint, which is located at the base of the spine where it connects to the pelvis. It causes inflammation and pain in the lower back, buttocks, and legs. Plantar fasciitis, on the other hand, is a condition that affects the plantar fascia, a thick band of tissue that runs along the bottom of the foot. It causes pain and stiffness in the heel and arch of the foot.

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      • Rheumatology
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  • Question 29 - An 80-year-old man presents with complaints of stiffness and pain in both shoulders....

    Incorrect

    • An 80-year-old man presents with complaints of stiffness and pain in both shoulders. He has experienced a weight loss of one stone over the past eight weeks and reports feeling lethargic with a decreased appetite. Upon investigation, a positive rheumatoid factor, normochromic normocytic anaemia, and a significantly elevated ESR (100 mm/hr) were found. What is the most probable diagnosis?

      Your Answer: SLE

      Correct Answer: Polymyalgia rheumatica

      Explanation:

      Polymyalgia rheumatica is an inflammatory disease that causes pain and stiffness in the shoulder and pelvic girdle muscles, along with systemic symptoms such as fever and weight loss. It is often associated with giant cell arthritis. Diagnosis can be difficult, but response to a moderate dose of steroids is a useful indicator. Non-steroidal anti-inflammatories are not recommended. Other inflammatory conditions should be excluded, such as rheumatoid arthritis, systemic lupus erythematosus, polymyositis, and polyarteritis nodosa.

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      • Rheumatology
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  • Question 30 - In which joint would the presence of osteoarthritic changes be atypical? ...

    Incorrect

    • In which joint would the presence of osteoarthritic changes be atypical?

      Your Answer: Knee joint

      Correct Answer: Shoulder joint

      Explanation:

      Osteoarthrosis and Common Deformities in the Hand

      Osteoarthrosis (OA) is a prevalent type of arthritis that often affects the hand. Upon examination of the joints, it is common to find small bone spurs known as nodes on the tops of joints. These nodes can take on different names depending on their location. For instance, if they occur at the joint next to the fingernail, they are called Heberden’s nodes. On the other hand, if they occur at the PIP joints, they are referred to as Bouchard’s nodes. It is worth noting that shoulder joint involvement is rare in OA.

    • This question is part of the following fields:

      • Rheumatology
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SESSION STATS - PERFORMANCE PER SPECIALTY

Rheumatology (27/30) 90%
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