PMC3349999_01
The epithelioid and sarcomatoid component of the tumor showing polygonal cells and spindle cells, respectively. There is focal appearance of osteosarcoma cells (hematoxylin-eosin, original magnification x400).
CRIM.UROLOGY2011-415675.001.jpg
PMC3349999_01_CRIM.UROLOGY2011-415675.001.jpg
fig1
The epithelial component was high-grade urothelial cancer, and the sarcomatoid element consisted of osteosarcoma and chondrosarcoma (Figure 1).