Stage I Ampulla of Vater Cancer AJCC v8NCIt concept
Preferred Label : Stage I Ampulla of Vater Cancer AJCC v8;
NCIt synonyms : Stage I Ampulla of Vater Carcinoma AJCC v8;
NCIt related terms : Stage I Ampulla of Vater Cancer;
NCIt definition : Stage I includes: IA: (T1a, N0, M0); IB: (T1b, N0, M0); (T2, N0, M0). T1a: Tumor limited
to ampulla of Vater or sphincter of Oddi. T1b: Tumor invading beyond the sphincter
of Oddi (perisphincteric invasion) and/or into the duodenal submucosa. T2: Tumor invading
into the muscularis propria of the duodenum. N0: No regional lymph node metastasis.
M0: No distant metastasis. (AJCC 8th ed.);