Friday Pop Quiz 1/30/2026
A family brings their 10-year-old daughter to clinic during the summer months. They immigrated from Mexico over the winter. She presents with an eruption on her lips, as seen in the image. She has had similar episodes in prior summers, with involvement of the upper eyelids and distal dorsal arms and hands, as well as associated conjunctivitis. Her symptoms are triggered by sun exposure. She was …
A family brings their 10-year-old daughter to clinic during the summer months. They immigrated from Mexico over the winter. She presents with an eruption on her lips, as seen in the image. She has had similar episodes in prior summers, with involvement of the upper eyelids and distal dorsal arms and hands, as well as associated conjunctivitis. Her symptoms are triggered by sun exposure. She was … 
Scarring alopecias can be especially distressing for a patient and challenging for a clinician to treat. Next Steps in Derm, in partnership with Skin of Color Update, interviewed Dr. Susan C. Taylor, Bernett Johnson Endowed Professor of Dermatology at the University of Pennsylvania Perelman School of Medicine. Watch as Dr. Taylor outlines how a deeper understanding of scarring alopecias is impact … 
Welcome to The Roadmap Series: Key Learnings by Residency Year. This first installment, PGY-2 Roadmap: What to Expect in Your First Year of Dermatology Residency, is a concise, practical guide to help new dermatology residents navigate the whirlwind of clinics, didactics, procedures, and consults. Inside you’ll find clear expectations from program directors, tips for mastering dermatologic ter … 
Sulfur–sulfacetamide is a long-standing topical therapy in dermatology valued for its combined antimicrobial, anti-inflammatory, and keratolytic effects. It is commonly used for several conditions including acne vulgaris, papulopustular rosacea, and seborrheic dermatitis. Although newer targeted therapies are often preferred for rosacea, sulfur–sulfacetamide remains a practical option, especia … 
A 35 year old man presents with this lesion shown in the photo on his hand. The patient undergoes a biopsy for confirmation of the diagnosis. What finding is specific for this condition?
A. Wedge-shaped perivascular lymphocytic infiltrate with eosinophils
B. Fibrinoid necrosis and leukocytoclasia
C. Collapsed keratin bundles
D. Peforating elastin, parakeratosis
E. Epithelial cel …