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Case 51

Author: Richard Cantley, MD. Cytopathology Fellow, McGaw Medical Center, Northwestern University, Chicago, USA

Reviewer: Ajit Singh Paintal, MD. Assistant Professor of Pathology, Northwestern University, Feinberg School of Medicine, Chicago, USA.

A 64 year old woman with no significant past medical history presents with a 2.8 cm mass in the mid-pole of the left kidney. CT-guided fine needle aspiration was performed.

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