Ampulla of Vater Cancer pT1 TNM Finding v8

**Semantic type:** Finding

**Definition:** Ampulla of Vater cancer with tumor limited to ampulla of Vater or sphincter of Oddi or tumor invading beyond the sphincter of Oddi (perisphincteric invasion) and/or into the duodenal submucosa. (from AJCC 8th Ed.)

**Synonyms:** - Ampulla of Vater Carcinoma pT1 TNM Finding v8