Renal oncocytoma

Renal oncocytoma is a benign kidney mass.

They are made up of oncocytes, a type of epithelial cell.

As with a lot of renal masses they are typically asymptomatic and discovered on an examination for another reason.

Renal oncocytomas typically affect males of over the age of 50.

They can be a solitary mass or occur in multiples affecting one or both kidneys.

People with genetic syndromes such as tuberous sclerosis complex and Birt-Hogg-Dube syndrome can be more affected by renal oncocytomas.