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Case 54

Author: Natasha Kim Berg, 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.

The patient is a 73 year old female with a right upper pole renal mass. She has a history of non-small cell lung cancer. A CT guided FNA and core biopsy of the right renal mass was performed. A Diff quik-stained touch prep of the core is submitted for review.

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