Fig. 1
From: Imaging spectrum of renal oncocytomas: a pictorial review with pathologic correlation
A 71-year-old man with classic renal oncocytoma in the left kidney. a The corticomedullary phase of the axial T1-weighted gradient echo (GRE) magnetic resonance (MR) image with fat saturation demonstrates an arterially enhancing mass (arrow) with hypointense central scar (small arrow). b The nephrographic phase demonstrates washout with enhancing central scar. c The axial T2-weighted fast spin echo (FSE) image with fat saturation shows the tumour to be of moderate signal (arrow) with hyperintense central scar (small arrow). d (High magnification) Oncocytoma, organoid pattern, tightly packed nests of tumour cells (T) with visible capillaries in the stroma (arrow)