Sarcomatoid Transitional Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A poorly differentiated transitional cell carcinoma characterized by the presence of malignant cells with spindle cell morphologic features.

**Synonyms:** - Transitional Cell Spindle Cell Carcinoma - Transitional Spindle Cell Carcinoma - Transitional cell carcinoma, sarcomatoid - Transitional cell carcinoma, spindle cell