Comments:
The stroma in oncocytomas can show diffuse calcification, calcospherites, osseous metaplasia (shown here), and myeloid metaplasia (Ref: Perez-Ordonez et al. Renal Oncocytoma: A Clinicopathologic Study of 70 cases. Am J Surg Pathol 1997 Aug; 21(8) 871-83.return to Oncocytoma
