Figure 5. Focal area of the renal mass demonstrating pleomorphic spindle cells and atypical mitoses

From

Rapidly Metastasizing Sarcomatoid Renal Cell Carcinoma in a 76-year Old Male

Nathaniel Moulton, Joe Devasahayam, Rohini Kannuswamy, Arul Chandran, Hunter Hofmann

American Journal of Medical Case Reports. 2016, 4(6), 221-223 doi:10.12691/ajmcr-4-6-10