Diagnosis Strategies

A 37-year-old woman presented to her primary care physician with erythematous and pruritic patchy lesions on her scalp that had been present for a year, which the patient initially presumed to be associated...

A 51-year-old man who works in the delivery services industry presented with bilateral leg edema, weight loss, and fatigue. He has lost more than 4.5 kg (10 lb) in the past 4 months without dieting. In...

A 71-year-old Russian-speaking man with a past medical history of hypertension and benign prostatic hyperplasia presented to the emergency department for evaluation of severe hemoptysis.

For more than three years now, COVID-19 continues to appear as a variety of symptom sets in the pediatric population—from completely asymptomatic presentations to fulminant respiratory failure, and...