Renal Medullary Carcinoma
Supplemental Studies
Immunohistology
| Low MW keratin | pos |
| High MW keratin | neg |
| EMA | pos |
| Vimentin | pos |
| CK7 | variable |
| CEA | variable |
| CK20 | neg |
| INI1 | neg |
- One series reports germ cell tumor marker OCT3/4 positive in 10/14 medullary carcinomas (Rao)
- SALL4 negative
- Collecting duct and urothelial carcinomas negative
