Non-Invasive Renal Pelvis and Ureter Papillary Urothelial Carcinoma, High Grade

**Semantic type:** Neoplastic Process

**Definition:** A non-invasive renal pelvis and ureter papillary urothelial carcinoma characterized by marked architectural and cytologic abnormalities and frequent mitotic figures (at all levels of the urothelium).

**Synonyms:** - Non-Invasive Renal Pelvis and Ureter Papillary Urothelial Carcinoma, High-Grade