1. Presented by Jonathan Epstein, M.D. and prepared by Natasha Rekhtman, M.D., Ph.D.

A 51-year-old male with a renal lesion measuring 1cm. The same histology is present on a needle biopsy of a contralateral renal mass sampled at the same time. The patient has a history of several family members each with multiple leiomyomas.

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