Objective To investigate the clinicopathologic characteristics of superficial adenocarcinoma of esophagogastric junction (AEG), and to analyze the relationship between endoscopic macroscopic type and tumor depth for such cancers. Methods The clinical data of the 57 superficial AEG patients who underwent endoscopic resection or surgical operation between November 2008 and May 2015 in West China Hospital, Sichuan University were analyzed. Clinicopathologic features were compared between different depth of tumor invasion by univariate and multivariate analysis. Results The age ranged between 48 and 76 yr., with an average age of (63.0±6.8) yr.; 49 cases in male, 8 cases in female. The tumor size ranged between 3.0 and 40.0 mm，the average size was 16.6 mm. The mucosal carcinoma was 28 cases, the submucosal carcinoma is 29 cases. There were no significant differences in age, gender, histological type and Siewert type in two groups, while there was statistical difference in tumor diameter ( P=0.02) and endoscopic typing ( P=0.02) between the two groups. The further multivariate analysis revealed that endoscopic macroscopic type ( P=0.041) was an independent risk factor of superficial AEG invasion depth. The risk of submucosal invasion was 3.244 times in depressed type as large as in elevated or flat type of the superficial AEG (95% confidence interval: 1.050-10.023). Conclusion The endoscopic macroscopic type may be useful in accurately diagnosing superficial AEG invasion depth. For the endoscopic macroscopic type mainly of depression, especially the type 0-Ⅲ, which was more likely to infiltrate the submucosal and more likely to have lymph node metastasis, do not recommend to get an endoscopic treatment.
