The American Society of Dermatopathology


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Interactive Case Study - January 2018

Nail bed lesion

Robin Burger, MD; Jisun Cha, MD


Question 0:

The patient presented with a one-year history of an erythematous nodule right under his right second nail.

Click this image to view the virtual slide


Figure 1. Low Power


Figure 2. Medium Power


Figure 3. High Power


Figure 4. High Power X2


 
What is the best diagnosis?