Urotelial carcinoma
According to histopathological examination
The dilated gallets and renal pelvis completely
Committed to neoplasia
Which also extends to the ureter

High-grade malignity urotelial carcinomas
May invade the renal spinal and cortical
Reaching the kidney capsule
They are distinguishable from the renal cell

Carcinoma by the granular aspect
The white and gray color and by committing
The renal pelvis more extently
This neoplasm can also invade the renal vein
And compromise the lower cave vein
As in renal cell carcinomas