Friday Pop Quiz 4/11/2025
A 45-year-old patient with no prior skin problems presents with this new rash and review of system is positive for finger joint pain and swollen fingers. The pain is worse in the morning and improves as the day goes on. A thorough review of the patient’s medical history and labs were negative for HIV, hepatitis B and C, renal and he …
A 45-year-old patient with no prior skin problems presents with this new rash and review of system is positive for finger joint pain and swollen fingers. The pain is worse in the morning and improves as the day goes on. A thorough review of the patient’s medical history and labs were negative for HIV, hepatitis B and C, renal and he … 
A 15-year-old girl who recently moved from India to the United States presents to dermatology clinic with chief concern of the pictured rash. She has previously undergone treatment with 4 weeks of daily terbinafine, as well as 6 weeks of fluconazole, without resolution. KOH reveals numerous branching hyphae.
Which of the following is the most appropriate next step?
A. Initiate topica … 
An 8-month-old boy is brought in by his mother for concerns of a rash that comes and goes for the last few months, primarily on his face and belly. His older brother suffers from asthma and often has a similar rash on the inside of his elbow and behind his knees. Lead-in Question: The gene most commonly mutated in the photograph is also mutated in which of the following?
A. Palmoplantar ker … 
A 23-year-old female presents with itchy and irritated rash in the image. The rash began in her late teens. She has a family history of similar rash in her mother. Which histocompatibility antigen is most likely in this patient?
A. HLA-Cw2
B. HLA-Cw6
C. HLA-B51
D. HLA-B27
E. HLA-Bw35
To find out the correct answer and read the explanation, click here.
Brought to you by our bra … 
A 24-year-old female patient presents with groups of itchy and tender small red papules around the eyes, nostrils, and mouth. Which of the following treatments is the first-line treatment used to treat severe cases of this condition?
A. Oral doxycycline for 6-12 weeks
B. High dose isotretinoin
C. Topical erythromycin gel
D. Topical tacrolimus ointment
E. Topical metronidazole
T … 