Friday Pop Quiz 11/12/2025
A 40-year-old female presents for a scalp biopsy. On histology, you note premature desquamation of the inner root sheath, eccentric epithelial atrophy with hair shafts in close proximity to the dermis, and concentric lamellar fibroplasia of some follicles. There is variably dense lymphocytic perifollicular inflammation, primarily at the level of the upper isthmus and lower infundibulum. There …
A 40-year-old female presents for a scalp biopsy. On histology, you note premature desquamation of the inner root sheath, eccentric epithelial atrophy with hair shafts in close proximity to the dermis, and concentric lamellar fibroplasia of some follicles. There is variably dense lymphocytic perifollicular inflammation, primarily at the level of the upper isthmus and lower infundibulum. There … 
Since skin cancer is a global epidemic, Dr. C. William Hanke, a dermatologic surgeon in Indianapolis, says it’s time to start tapping into the procedural tool box to focus on prevention. Next Steps in Derm, in partnership with the ODAC Dermatology Conference, interviewed Dr. Hanke, who outlines therapies to reverse sun damage that vary in their aggressiveness. Watch as Dr. Hanke shares which pat … 
You’ve got the books and account logins at the ready. You know you need to start studying for the Board exams, but the whole process seems daunting. How do you transfer all the content off the pages and screens and into your brain?
You need some pro tips, and I’ve got good news. The Derm In-Review Advisory Council members are here to save the day. They’re navigating residency and fellow … 
Sarecycline is a third-generation, narrow-spectrum tetracycline developed specifically for the treatment of acne vulgaris. It is distinguished by its weight-based once-daily dosing, favorable side effect profile, and relative microbiome-sparing compared with older tetracyclines. We continue our series, Therapeutic Cheat Sheet, with a closer look at Sarecycline.
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A 2-year-old male with recurrent flares of the pictured findings developed non-tender nodules on his bilateral thighs. What would likely establish the diagnosis?
A. Genetic testing for STAT3 and DOCK8 mutations
B. Genetic testing for SPINK5 mutations
C. Obtaining immunoglobulin E levels
D. Obtaining serum zinc levels
E. Flow cytometry to evaluate CD18 expression
To find out the …