Fig. 15
From: Imaging spectrum of renal oncocytomas: a pictorial review with pathologic correlation
A 61-year-old man with a right renal oncocytoma demonstrating interval growth. a The sagittal reformatted image in the portal venous phase of a CE-CT demonstrates a moderately enhancing well-circumscribed mass in the lower right renal pole (arrow). The mass measures 3.5 cm in long axis diameter. b Follow-up CT 2 years after a demonstrates interval increased size of the mass (arrow), now measuring 4 cm