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

**Semantic type:** Neoplastic Process

**Definition:** A non-invasive renal pelvis and ureter papillary urothelial carcinoma characterized by minimal cytologic atypia and infrequent mitotic figures.

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