Dermatology

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."

PT VIDEO: The non-pruritic rash spread from his chest over 3d; no response to prednisone. What do you suspect?

A mom brings her 2 young girls in for runny noses. But a close look at her face got this primary care doc thinking deeper thoughts.

Differences in cutaneous structure and function make dermatoses in skin of color unique. Here, 2 cases to test your visual acumen.

VIDEO: The lesions appear oval with trailing edge scale. Note the the pattern and distribution in the video interview; what's your diagnosis?

We’ve stumped you before – and we’re trying again! Our 5 most challenging ImageIQs from 2015.

Can you identify the 2 slowly expanding growths on the chest of this 68-year-old man?

A 25-year-old man presents with progressive dysphagia to solids. You order an upper endoscopy. What do the results tell you?

The "bruise" arose after the 20-month-old bumped his cheek on a piece of furniture 1 month ago. Can you identify the lesion?

A pruritic, scaly rash appeared on this 42-year-old man's elbows, knees, lower back, and buttocks. Can you ID?

An 89-year-old woman is seen for an erosion on the frontal area of the scalp. History is positive for actinic keratosis. What's your Dx?

The rapidly expanding lesion began as a small boil in the center of the ulcerated area 4 weeks ago. What underlying process do you suspect?

A 31-year-old woman presents with ongoing weakness and malaise and says her skin seems to be getting darker without exposure to the sun. Your Dx?

The lesions may mimic infectious, vascular, inflammatory and other ulcers; they do not respond to antibiotics and debridement often exacerbates the ulcer.

Painful red lesions on the shins. Trauma? Tumor? Inflammation? The diagnosis is in the detailed differential you'll follow in this slide show.

Test your visual diagnostic skills with this slide-show case of a young boy with an odd facial lesion of approximately one month's duration.

8-year-old Al is in for follow-up of an ear infection, but his mother is more interested in why no hair will grow on that spot on the back of his head.

The patient has similar lesions elsewhere on his body. Treatment with a topical steroid was unsuccessful. Can you ID?

Test your visual diagnostic skills, vote for your preferred Dx and treatment, and learn about 2 common annular lesions along the way.

An 11-year-old boy breaks out quite suddenly with a rash of papulosquamous lesions with a silvery scale. Can you Dx?