Stage II includes: (T2, N0-1, M0); (T3, N0, M0). T2: Tumor invades the muscularis propria. T3: Tumor invades adventitia. N0: No regional lymph node metastasis. N1: Tumor with metastasis in one or two regional lymph nodes. M0: No distant metastasis. (AJCC 8th ed.) [from
NCI]