Case Report
Sarcomatoid Variant of Urothelial Carcinoma of the Renal Pelvis with Inferior Vena Cava Tumour Thrombus: A Case Report and Literature Review
Table 1
Comparison of immunohistochemistry findings in the sarcomatous and urothelial components.
| Antibody | Carcinoma component | Sarcomatoid component |
| CK 7 | Diffusely positive, strong intensity | Weak, focal positive | CK 20 | Focally positive, strong intensity | Negative | p53 | Focally positive, strong intensity | Negative | P63 | Diffusely positive, strong intensity | Negative | GATA-3 | Diffusely positive, strong intensity | Weak, focal positive | Vimentin | Negative | Diffusely positive, strong intensity | Desmin | Negative | Negative | Smooth muscle action | Negative | Negative |
|
|