Bladder Diverticulum Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A carcinoma arising in a bladder diverticulum. Approximately one-third to half of the cases represent non-invasive, low-grade or high-grade urothelial carcinomas. Approximately half of the invasive carcinomas are urothelial. The rest include adenocarcinomas, squamous cell carcinomas, and small cell carcinomas.

**Synonyms:** - Bladder Diverticular Carcinoma - Carcinoma Arising in Bladder Diverticulum