Neck Mass Discovered in 38-Year-Old Man


A 38-year-old man presented with neck swelling and pain of several weeks duration. At physical examination, a mass in the right side of the neck was found. Surgical resection of the mass was performed.

Your diagnosis is:

A. Atypical lipoma
B. Liposarcoma
C. Leiomyosarcoma
D. Ectopic hamartomatous thymoma
E. Metastatic carcinoma