Stage IIA includes: (T2, N0, M0, G3); (T2, N0, M0, GX). T2: Tumor invades the muscularis propria. N0: No regional lymph node metastasis. M0: No distant metastasis. GX: Grade cannot be assessed. G3: Poorly differentiated, undifferentiated. (AJCC 8th ed.) [from NCI]