Invasive Sarcomatoid Urothelial Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** An invasive urothelial carcinoma that exhibits spindle cell sarcomatoid features.

**Synonyms:** - Infiltrating Urothelial Carcinoma, Sarcomatoid Variant - Invasive Urothelial Carcinoma, Sarcomatoid Variant