[Retracted] Clinical Comparison of Endoscopic Ultrasonography and CT in Preoperative TN Staging of Esophagogastric Junction Cancer

Table 4

Evaluation criteria for endoscopic ultrasonography of primary tumors.

uT staging	uNM staging
uT1a: invasion of the mucosal layer	N0: no lymph node metastasis
uT1b: invasion of the submucosa	N1: 1-2 lymph node metastasis
uT2: violation of the muscularis propria	N2: 3-6 lymph node metastases
uT3: invasion of connective tissue	N3: 7 or more lymph node metastases
uT4a: invasion of the visceral peritoneum	M0: no distant metastases
uT4b: violation of peripheral organs	M1: there is distant metastasis