Neck Swelling in 48-Year-Old Patient

Neck Swelling in 48-Year-Old Patient

March 17, 2016

A 48-year-old man presents with swelling on the right side of his neck, and a biopsy is performed. What is your diagnosis?

A 48-year-old man presents with swelling on the right side of his neck, and a biopsy is performed.

Based on the image shown, what is your diagnosis?