Tumor Found in Humerus of 18-Year-Old Patient

Tumor Found in Humerus of 18-Year-Old Patient

February 16, 2017

An 18-year-old man presents with a tumor in his humerus, and a biopsy is performed. What is your diagnosis?

An 18-year-old man presents with a tumor in his humerus, and a biopsy is performed.

Based on the image shown, what is your diagnosis?