The American Society of Dermatopathology

View case study archive

Interactive Case Study - February 2013

Upper thigh nodule in a 13-year-old girl

Jenna Lester ; Leslie Robinson-Bostom, MD

Question 1:

A 13-year-old girl presented with a 1.7 cm x 2.5 cm brownish-red nodule on her left upper inner thigh. A punch biopsy was performed.

Figure 1. 10x

Figure 2. 200x

Figure 3. 400x

Figure 4. CD34 stain

What is the most likely diagnosis?