Friday Pop Quiz 4/17/2026
Which of the following is the most likely diagnosis in this 56-year-old woman with pruritic hair loss for 3 months?
A. Lichen planopilaris
B. Androgenetic alopecia
C. Central centrifugal cicatricial alopecia
D. Discoid lupus erythematosus
E. Folliculitis decalvans
F. Alopecia areata
To find out the correct answer and read the explanation, click here. …
Which of the following is the most likely diagnosis in this 56-year-old woman with pruritic hair loss for 3 months?
A. Lichen planopilaris
B. Androgenetic alopecia
C. Central centrifugal cicatricial alopecia
D. Discoid lupus erythematosus
E. Folliculitis decalvans
F. Alopecia areata
To find out the correct answer and read the explanation, click here. … 
This article was originally published on October 22, 2019, and updated on February 2, 2026, by the Next Steps in Derm Editorial Team to include updated links to recent research on the use of biotin for hair loss, as well as a CME opportunity for clinicians seeking advanced training in hair and scalp disorders.
A full head of hair. This is how I came away from Dr. Heather Woolery-Lloyd’s lectu … 
A healthy 50-year-old patient presents with three-month history of progressive hair loss and scalp redness with associated pruritus. On closer scalp examination, there is perifollicular erythema, inflammation, and scaling. There appears to be loss of follicular openings in the erythematous patch. In addition, erythematous and skin-col … 
What test should be performed for our patient with the hair loss pictured?
A. Serum zinc level
B. RPR
C. ESR and CRP
D. Serum copper level
E. Free and total testosterone levels
To find out the correct answer and read the explanation, click here.
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Hair loss is a broad category that can be difficult for dermatology clinicians to manage. Having a scripted or algorithmic approach to alopecia consults can decrease clinician anxiety, says Dr. Adam Friedman, co-chair of the ODAC Dermatology, Aesthetic & Surgical Conference. Next Steps in Derm, in partnership with ODAC, interviewed Dr. Friedman, who shared his approach for evaluating alopecia …