Skin Lesion – Friday Pop Quiz 01/08
Granular cell tumors
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Histologically, this lesion shows plump, polygonal cells arranged in nests and fascicles with granular cytoplasm. Which immunohistochemical stain would be positive? A. CD31 B. Synaptophysin C. Factor XIIIa D. S-100 E. CD34 To find out the correct answer and read the explanation, click here.  Brought to you by our brand partner Derm In-Review.  A product of SanovaWorks. …
Pathology of a Lesion- Friday Pop Quiz 12/11
lesion
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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 …
Green Nail Syndrome – Friday Pop Quiz 12/4
green nail syndrome
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A 60-year-old patient develops a green-black to green-blue discoloration of one of her toenails. You suspect she may have green nail syndrome. Which of the following is not a predisposing factor to the development of green nail syndrome? A. Excessive use of detergents B. Excessive use of soaps C. Nail trauma D. Melanocytic nevus E. Frequent and prolonged exposure to water To fi …
Cicatricial Alopecia – Friday Pop Quiz 11/27
cicatricial alopecia
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The best diagnosis of this type of cicatricial alopecia shown in the image is: A. Chronic cutaneous lupus erythematosus B. Lichen planopilaris C. Central centrifugal cicatricial alopecia D. Pseudopelade of Brocq E. Alopecia mucinosa To find out the correct answer and read the explanation, click here.  Brought to you by our brand partner Derm In-Review.  A product of SanovaWo …