Clinical Context:
50 year old male with incidental detection of mass in right kidney on ultrasound. Partial nephrectomy done thereafter.

Well circumscribed tumor with mahogany brown cut surface and central scar

Cut surface: Mahogany brown with central scar
Gross diagnosis?
Give the gross and microscopic differential ?
Click on the QR-code for microscopy and diagnosis.
Last modified: 08/09/2021