The American Society of Dermatopathology

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Interactive Case Study - January 2021

A 6-month-old female with a finger mass

Develyn Vetos, MS IV; B. Joel Tjarks, MD

Question 1:

A biopsy of a 1.0 x 1.0 cm mass that appeared 2 months prior on the fifth finger of a 6-month-old female shows the following histopathology (Figures 1-3).

Click the picture below to view the virtual slide.

Figure 1.

Figure 2.

Figure 3.

Which of the following is the best diagnosis?