label: Pathologic Stage IB Gastroesophageal Junction Adenocarcinoma AJCC v8
label_lc: pathologic stage ib gastroesophageal junction adenocarcinoma ajcc v8
description: "Stage IB includes: (T1a, N0, M0, G2); (T1b, N0, M0, G1-2); (T1b, N0, M0, GX). T1a: Tumor invades the lamina propria or muscularis mucosae. T1b: Tumor invades the submucosa. N0: No regional lymph node metastasis. M0: No distant metastasis. G1: Well-differentiated. GX: Grade cannot be assessed. G2: Moderately differentiated. (AJCC 8th ed.)"