The Dermatopathologist Quiz - September 2018

This education series for dermatologists is presented by the Weill Cornell Comprehensive Dermatopathology Service.

Case 1 figures A-D

Case 1.

A 50-year-old woman presented with recent pigmentation of the left big toenail. A biopsy was performed (Figures A-D). This condition is caused by:

a. Hortaea werneckii
b. Malassezia globosa
c. Trichophyton rubrum
d. Candida parapsilosis

Case 2

Case 2.

A 90-year-old man presented with a verrucous scrotal papule. A biopsy was performed (Figures A-C). The best diagnosis is:.

a. Condyloma acuminatum
b. Verruciform xanthoma
c. Squamous cell carcinoma in situ 
d. Verrucous carcinoma

To learn the answers, go to page 2

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