Friday Pop Quiz 10/30/2026
A 20 year old female patient presents with the following painful, eroded and crusted rash in her axillae. She reports she has family members with a similar diagnosis. What is the mode of inheritance of this condition?
A. Autosomal dominant
B. Autosomal recessive
C. X-linked dominant
D. X-linked recessive
E. It is not a genetic disorder
To find out the correct answer and read th …
A 20 year old female patient presents with the following painful, eroded and crusted rash in her axillae. She reports she has family members with a similar diagnosis. What is the mode of inheritance of this condition?
A. Autosomal dominant
B. Autosomal recessive
C. X-linked dominant
D. X-linked recessive
E. It is not a genetic disorder
To find out the correct answer and read th … 
The pathology of this lesion demonstrates reticulate strands of the epidermis with clefting between the strands and the stroma. What is the diagnosis?
A. Eccrine syringofibroadenoma
B. Fibroepithelioma of Pinkus
C. Squamous cell carcinoma
D. Reticulate seborrheic keratosis
E. Tumor of the follicular infundibulim
To find out the correct answer and read the explanation, click her … 
A 55 year old female presents to the dermatology clinic for follow-up for treatment of prurigo nodularis. There are more than 20 lesions on her arms, legs, and back and the patient reports they continue to be severely itchy, and affects her quality of life and ability to sleep at night. Lab work, including CBC, CMP, HA1c, HIV, hepatitis panel and TSH/free T4 have been normal. She has not respo … 
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
… 
Your 25-year-old patient notes a rapid onset of numerous lesions like the one pictured here which spontaneously start to resolve without scarring. There is no involvement of the airway. He notes a family history of similar lesions. What is the likely condition, and what is the inheritance pattern?
A. Ferguson-Smith, AD
B. Ferguson-Smith, AR
C. Ferguson-Smith, XLD
D. Grzbowski, AD
…