Skin Diseases

Look closely at this eruption and consider its distribution. Is the dermatology clinic seeing a "textbook" case here? What's your diagnosis?

The lesion, seen first more than 10 years ago, is larger and has changed. It has not been followed. Your Dx? Next steps?

This serious symptom constellation is seen in a 21-year-old man. Is it familiar to you?

The diagnosis of trichotillomania seemed certain, despite lack of supporting history. It turned out to be about 50% wrong.

A 10-month history of progressive swelling below the knee makes this 12-year-old's case an ideal stop on the medical mystery tour.

It looked very much like dermatomyositis, but there were no signs of muscle weakness. What would be in your differential diagnosis?

A compressible groin swelling is the only abnormal feature after full-term gestation and unremarkable delivery. Your Dx?

The 16-year-old is upset by a new outbreak of “acne” and the prom is in 2 weeks. But is it acne? And what’s that bruise?

A young naval recruit presents with a cluster of symptoms that may sound familiar. Get more clues and a close look at the rash, here.

Onset of illness was acute; fever is high and rash is widespread. Exam is performed in isolation. Your Dx?