Friday Pop Quiz 10/2/2026
A 26-year-old man with a history of cystic fibrosis initiated a new cystic fibrosis medication two months ago. Approximately one week ago, the patient noticed the abrupt onset of papules on his upper back, as shown, for which he has tried using a benzoyl peroxide wash without improvement. Which of the following is the most appropriate next step?
A. Cessation of cystic fibrosis medication
…
A 26-year-old man with a history of cystic fibrosis initiated a new cystic fibrosis medication two months ago. Approximately one week ago, the patient noticed the abrupt onset of papules on his upper back, as shown, for which he has tried using a benzoyl peroxide wash without improvement. Which of the following is the most appropriate next step?
A. Cessation of cystic fibrosis medication
… 
This patient should be treated with what medication to avoid further scarring?
A. Topical tretinoin
B. Minocycline
C. Isotretinoin
D. Spironolactone
E. Bactrim
To find out the correct answer and read the explanation, click here.
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Dr. Lester is the Director of the Skin of Color Program at the Department of Dermatology University of California San Francisco. Wow! This means we got a “two for one special” from her lecture, not only learning about the truths and myths associated with the use of isotretinoin in acne but also recognizing that those who are underrepresented minorities or socioeconomically disadvantaged may no … 
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