Fever, Arthritis, & Abdominal Pain

Henoch-Schönlein purpura
A patient presents with a sudden onset of fever, painful joints, abdominal pain, and hematemesis. Explore the differential diagnosis for this vasculitis.
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A Surprising Finding on Otoscopy

Herpes zoster
A patient presents with severe ear pain (otalgia). Otoscopy reveals unexpected blisters on the eardrum. Explore this classic presentation and its diagnosis.
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When Air Surrounds the Heart

Pneumopericardium
A patient presents with findings of air in the pericardium on a chest radiograph. Explore the diagnosis and management of this rare but critical condition.
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A Tough Case of Hardened Skin

Nephrogenic fibrosing dermopathy
Explore the diagnosis of puzzling skin changes, like brawny induration and plaques, that can develop in patients with end-stage renal failure.
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A Puzzling Thoracic Bulge

Intercostal muscle
Explore a rare case of a chest wall defect presenting with subcutaneous emphysema. What could cause a focal bulge and herniation between the ribs?
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Not Just a Fungal Infection

Yellow-nail syndrome
Explore a rare condition linking yellow, slow-growing nails with chronic sinusitis, bronchiectasis, and lymphedema. Learn why it's often mistaken for fungus.
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A Painful Unilateral Rash

Herpes zoster
Explore a case of a painful, vesicular rash on the forehead following the distribution of the trigeminal nerve. What is the underlying diagnosis?
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Decoding a Complex Bone Scan

Metastatic lung cancer
A patient with a persistent cough undergoes a bone scan, revealing metastatic uptake and signs of hypertrophic osteoarthropathy. What is the diagnosis?
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A Bruised Newborn’s Secret

Retroperitoneal hemorrhage
An infant born at term presents with unexplained scrotal and inguinal ecchymoses. Explore the differential diagnosis for this surprising physical finding.
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A Giant Destructive Lesion

Condyloma acuminatum
Explore a case of a rare, destructive tumor in a young man, discussing its risk of malignancy and the combined surgical and topical treatment approach.
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