Friday Pop Quiz 11/21/2025
After treating this patient with Onabotulinumtoxin-A, they return to clinic complaining of their right upper eyelid drooping and interfering with their vision. What is the mechanism of action of the medicated eye drops which has been shown to be beneficial when this adverse effect occurs?
A. Alpha agonist which results in contraction of the superior tarsal muscle
B. Alpha agonist which resul …
After treating this patient with Onabotulinumtoxin-A, they return to clinic complaining of their right upper eyelid drooping and interfering with their vision. What is the mechanism of action of the medicated eye drops which has been shown to be beneficial when this adverse effect occurs?
A. Alpha agonist which results in contraction of the superior tarsal muscle
B. Alpha agonist which resul … 
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 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 … 
What is the minimum amount of time that you would advise this woman to avoid pregnancy after completing a course of isotretinoin?
A. 1 week
B. 1 month
C. 6 months
D. 1 year
E. 3 years
To find out the correct answer and read the explanation, click here.
The image is from The Full Spectrum of Dermatology: A Diverse and Inclusive Atlas.
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There are four types of Kaposi Sarcoma. The viral strain associated with classic AIDS-associated Kaposi Sarcoma is:
A. HHV-8
B. HHV-6
C. HHV-5
D. HHV-4
E. HHV-3
To find out the correct answer and read the explanation, click here.
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