Case 40

Authors: Isil Yildiz-Aktas, M.D; and Walid E. Khalbuss, M.D., Ph.D., University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, USA.

Reviewed by: Rosemary H. Tambouret, M.D., Massachusetts General Hospital, Boston, MA, USA.

A 35 year old woman presented with left firm, irregular, non-tender, fixed breast mass. An US-guided FNA was performed. Aspirated material was submitted for cytological evaluation.

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What is the most likely diagnosis of this case?