Stephen Nobles, MD1, Walid Khalbuss, MD, PhD2, Laura Tabatabai, MD1
1Department of Pathology, University of California-San Francisco, San Francisco, California
2Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
Clinical History: The patient is a 62 year old man who presents with a 2.8 cm non-tender mass at the angle of the jaw. He was treated for lung cancer 6 years ago and has a 50 pack year smoking history. Fine needle aspiration was performed.
What is your diagnosis?