Renal oncocytoma: pathology

Case contributed by Dr Andrew Ryan


Incidental finding on CT scan

Patient Data

Age: 47
Gender: Male

 Coronal section of right kidney ('bivalved'). There is a round, tan tumour, 15mm in diameter, bulging into the hilar fat; it is quite hard to see because of similar colour to the surrounding renal parenchyma. There is an incidental lower pole simple cortical cyst.

Histology (low power): there are rounded to angular 'islands' of tumour cells surrounded by pale oedematous stroma. This pattern is sometimes referred to as 'archipelangenous'

Case Discussion

Renal oncocytoma

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Case information

rID: 16160
Case created: 24th Dec 2011
Last edited: 14th Jan 2016
System: Urogenital
Tags: benign, kidney
Inclusion in quiz mode: Excluded

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