Dermatology

The signs are everywhere. See if you recognize these 5 skin eruptions often seen when man gets back to nature.

Disfiguring skin signs were seen in all 3 children, but not their parents. Take this quick quiz to test your knowledge of the “fish scale disease.”

We give you 6 cases with a photo, presenting details, and a differential. Now, what's your Dx?

Test your knowledge of recent approvals that are significant for primary care.

On a tropical vacation, a woman develops a severe pruritic rash after being bitten on the hand by an insect. Can you name the bug?

Click through this slide summary for a look at some of the more significant approvals so far for primary care.

Find out what you've learned after reading this month's Special Report articles on nonmelanoma lesions you may see in primary care practice.

The solitary, keratotic lesion has grown quickly over one month. Infection? Neoplasia? What else is in your differential diagnosis?

Actinic keratosis and squamous cell carcinoma often are clinically indistinguishable. Get tips on what to look for and how to treat.

An 82-year-old woman presents for evaluation of an ear lesion--and receives a complete skin exam. Can you identify the 3 other lesions found?

What is this 6-mm shiny nodule on the face of a fair-skinned woman with moderate-to-severe photo damage?

Primary care physicians will see many patients with early signs of nonmelanoma skin cancers. Test your visual diagnostic skills in this series.

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?

Can you identify this acral eruption of a week's duration on a 3-year-old boy?

What is the cause of this severe rash in a 60-year-old man with HIV?

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?

This pop quiz will test your knowledge of a difficult diagnosis where the signs and symptoms may seem unrelated.