Skin Rash – Friday Pop Quiz 1/6/23
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.
The gene most commonly mutated in the photograph is also mutated in which of the following?
A.) Palmoplantar keratoderma
B.)� …
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.
The gene most commonly mutated in the photograph is also mutated in which of the following?
A.) Palmoplantar keratoderma
B.)� … 
A 2 day-old infant is being seen in the hospital for the following rash. Which of the following is not true about the infant’s disease?
A. Skin lesions typically resolve without scarring
B. There is a strong association with anti-SSA/Ro antibodies
C. There are also reports of the presence of U1RNP antibodies
D. Lesions have a predilection for the face
E. Heart block often deve … 
Which of the following conditions may be associated with dental findings resembling those seen in the genetic condition featured in the picture above?
A. Ectodermal dysplasias
B. Pachyonychia congenita type 2
C. Hyper-IgE syndrome
D. Congenital erythropoietic porphyria
E. Gardner syndrome
F. Letterer-Siwe disease
G. Papillon-Lefevre syndrome
H. Sjogren-Larsson syndrome
… 
A 45-year-old male develops the following eruption on the face and axillae. Which of the following medication was the patient most likely started on several days prior?
A. Ciprofloxacin
B. Trimethoprim/sulfamethoxazole
C. Penicillin
D. Allopurinol
E. Hydralazine
To find out the correct answer and read the explanation, click here.
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A 65-year-old patient presents with this painful, itchy rash on the right dorsal foot. The pain has made ambulating difficult. Prior unsuccessful treatments included topical betamethasone and clotrimazole. Based on the image provided, which of the following treatments have the highest cure rate?
A. Oral itraconazole
B. Oral terbinafine
C. Topical ciclopirox nail lacquer
D. Topical … 