label: Pathologic Stage IA Esophageal Squamous Cell Carcinoma AJCC v8
label_lc: pathologic stage ia esophageal squamous cell carcinoma ajcc v8
description: Stage IA includes: (T1a, N0, M0, G1, Tumor location: Any); (T1a, N0, M0, GX, Tumor location: Any). T1a: Tumor invades the lamina propria or muscularis mucosae. N0: No regional lymph node metastasis. M0: No distant metastasis. G1: Well-differentiated. GX: Grade cannot be assessed. (AJCC 8th ed.)