Clinical Review

Diagnosing and Treating Hansen's Disease

Few human diseases instill greater fear than leprosy (Hansen’s disease), and few are as poorly understood. Worldwide, the number of new cases has...


An Unexpected Effect of Crohn's

A 47-year-old woman pre­sents with a lesion that first appeared on her arm two months ago. The lesion has grown increasingly tender and large and...


Dark Lesions Prompt Skin Cancer Scare

A 71-year-old man is urgently referred to dermatology by his primary care provider at the request of the patient’s children. These adult children...