Spot Diagnosis

A 30-year-old man with the acquired immunodeficiency syndrome presented with a six-month history of enlarging facial lesions...

A 23-year-old man with good past health, presented with sudden onset left sided chest pain and shortness of breath...

A 75-year-old white man presented with a 3-week history of nonpainful discoloration of his palate...

A 70-year-old chronic smoker presented with haemoptysis and weight loss for 2 months...

This 52-year-old man reported that since childhood his urine had turned a dark color on exposure to air...

A 15-year-old male patient presented with a 3-months history of shortness of breath, decreased appetite, fatigue and fever...

A 46-year-old man presented to the otolaryngology clinic with hearing loss and a sensation of fullness in the left ear...

22-year-old Guatemalan man presented with a swollen mass in the right side of his neck of 4 months' duration...

An 82-year-old woman presented with a history of progressive dyspnoea and dysphagia for several years...

A 15-year-old boy presented with lifelong neck swellings that had been gradually increasing in size. He was otherwise asymptomatic. Laboratory tests revealed evidence of subclinical hypothyroidism, with elevated thyrotropin levels...