Intensely Pruritic Rash After Sun Exposure in a Tween Girl

A rash presumed to be a possible fungal or bacterial infection on the legs and feet of a 62-year-old man has failed to improve after 10 days of treatment. What's your Dx?

Dupilumab therapy for 4 weeks in adults with severe atopic dermatitis resulted in significant improvements in clinical outcomes with no adverse events reported.

A 68-year-old woman presents with a new 6-mm nodule with central ulceration and a rolled border on the right cheek. What's your diagnosis? How would you treat?

Patient claims pruritic full-body rash is from a course of vancomycin. Is he correct? Could it be something else?

Patient is 54 y/o man; the cough has been present for 2 weeks, the rash on the lower extremities for 2 months; the rash is getting worse. What's your dx?

Guttate and other psoriasis may be confused with other rashes and skin lesions. Scratch the surface of your knowledge with this crash quiz.