Research Article
[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 |
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