Vijay George, 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: A 78 year old man presents with a unilateral 2.9 cm parotid gland mass. A fine needle aspiration (FNA) was performed for cytological analysis.
What is your diagnosis?