Right Arm Lesion Found in 43-Year-Old Man

October 3, 2016
Cesar A. Moran, MD

A 43-year-old man presents with a lesion in the right arm. After a biopsy is performed, what is your diagnosis?

A 43-year-old man presents with a lesion in the right arm. According to the pathology image below, what is your diagnosis?

What is your diagnosis?