Dermatology

Diagnosis and treatment of tinea infections can be difficult. Take this quick quiz to test your knowledge.

When in the Caribbean, why not get a tattoo? This man could now tell you exactly why to resist the vacation temptation.

Take this quick quiz to test your knowledge of a relatively uncommon inflammatory muscle disease.

Can you identify this acute widespread nodular rash on a neonate who is otherwise ready for discharge?

The condition is common but seen infrequently in primary care practice. Take this quiz for a quick refresher.

Lesions are warm to the touch; exam is unremarkable. Does mom have the answer? Do you?

Correct diagnosis of Rocky Mountain spotted fever leads to correct treatment, but many cases are misdiagnosed. Take this test to see what you know.

Skin ulcerations have a broad differential. Take this quick quiz to test your knowledge of some difficult diagnoses.

The eruption has been present for 1 year and is restricted to the perioral region. What is included in your differential?

Walk through this case of unexplained bruising in a young boy that proves signs and symptoms are not always what they appear to be.

A boy’s bald spot has been present since birth. Take this quiz to test your knowledge of the most common congenital cicatricial alopecia.

What is the cause of this erythematous rash that appeared suddenly and spread rapidly on the child's trunk and extremities?

A young mother’s “high coloring” consists of papular, flesh-colored lesions that resemble telangiectasia. Can you ID?

VIDEO: The child's hands are chronically dry but the skin has recently begun to crack; vesicular rash appeared after an ocean swim. Dx?

This case of "gnarly nails" takes you back to Physical Diagnosis 101. Do you recall the causes of pitting, clubbing and lines?

PT Video: A short course of steroids was ineffective. He returns to ED c/o worsening joint and abdominal pain. Can you Dx?

What disease, known in antiquity but largely eradicated from the developed world, caused this severe facial scarring?

They come from opposite coasts, but their symptoms are too similar to ignore. Can you find the common thread in these cases?

The eruption has become widespread over a 2-week period. Use your memory of dermatology basics to help make the diagnosis.

The young woman's foot odor is accompanied by physical findings on the plantar surfaces. What's your Dx? Rx?

VIDEO: The non-pruritic rash began on his chest and spread rapidly over 3 days. Get a closer look; what's your diagnosis?

The lesion, along the patient's left jaw line, has not responded to antibiotic treatment. A colleague asks for your help.

Antibiotics have not been effective in either case and one of the teens is losing time at work visiting doctors. Can you dx?

The 60-year-old black woman has a history of joint pain, muscle weakness, and Raynaud phenomenon. Why the “dirty hands”?

Video: The lesion bleeds easily and grows back quickly when "knocked off."