92 free questions tagged Diagnosis, each with a full explanation of every option.
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A 63-year-old woman reports several months of bone pain and difficulty climbing stairs. She has no focal neurological deficit. Serum calcium is 2.19 mmol/L (2.1…
A 48-year-old woman has a slowly enlarging thyroid nodule, intermittent diarrhoea and facial flushing. Her TSH is 1.6 mIU/L (0.4–4.0), and serum calcitonin is 1…
A 58-year-old man is found to have a serum calcium concentration of 2.78 mmol/L (2.15–2.55) on two occasions. His phosphate is 0.72 mmol/L (0.80–1.50), creatini…
A 42-year-old woman has progressive fatigue, reduced appetite and dizziness when standing. Her serum sodium is 127 mmol/L (135–145), potassium is 5.8 mmol/L (3.…
A 15-year-old boy has six months of recurrent, predominantly right-sided epistaxis and progressive right nasal obstruction. He has no fever or facial pain, and…
A 14-month-old child has fever and irritability after several days of coryza. The child is pulling at the right ear and wakes repeatedly overnight. Otoscopy sho…
A 71-year-old man develops severe pain and blurred vision in his right eye over two hours. He reports coloured haloes around lights and nausea; examination show…
A 38-year-old woman experiences brief episodes of spinning when she rolls over in bed or looks upward. Each episode lasts less than a minute, and she is well be…
A 67-year-old man notices flashes of light and a sudden increase in dark spots in his right eye. Several hours later he describes a grey curtain progressing fro…
A 68-year-old man presents with fever, rigors, dysuria and perineal pain. He has been unable to pass urine for 10 hours, and examination shows a markedly tender…
A 27-year-old woman presents with 2 days of lower abdominal pain and deep dyspareunia. She has purulent cervical discharge, a temperature of 38.1 °C and marked…
A 29-year-old woman has painless cervical and mediastinal lymphadenopathy that has progressed over 2 months. She reports drenching night sweats and pruritus but…
A 59-year-old man has a painless left cervical mass that has enlarged over 6 weeks. He reports drenching night sweats and has no dental infection, pharyngitis o…
A 79-year-old woman with limited mobility has a sacral ulcer measuring 5 cm in diameter. The ulcer extends through the dermis, with visible subcutaneous fat and…
An 87-year-old woman living independently develops confusion over 2 days after a chest infection. Her alertness varies during the day, and she cannot sustain at…
A 24-year-old man has 9 months of low back pain that began gradually and improves after exercise but not with rest. He wakes in the second half of the night and…
A 67-year-old woman has new bilateral shoulder and hip girdle aching with difficulty lifting her arms and rising from a chair. Symptoms are worst in the morning…
A 58-year-old man develops severe pain and swelling at the base of his right great toe overnight. He is afebrile and has no skin wound or prosthetic joint. Syno…
A 29-year-old woman has photosensitive facial erythema, painless oral ulcers and symmetrical pain and swelling of the small joints of both hands. Urinalysis sho…
A 67-year-old woman reports several years of pain at the bases of both thumbs and in the distal finger joints. The pain is worse after gardening, morning stiffn…
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