• Yudai Chen, Liping He, and Xiaoling Zheng.
• Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China.
• Medicine (Baltimore). 2023 Dec 8; 102 (49): e36439e36439.

AbstractThis study evaluated the clinical characteristics of multiple early gastric cancer (MEGC) and high-grade intraepithelial neoplasia (HGIN) treated by endoscopic submucosal dissection. The clinical profiles of 23 patients with MEGC treated by endoscopic submucosal dissection from January 2008 to June 2019 at the Fujian Provincial Hospital or Fujian Provincial Hospital South Branch were analyzed. The following information was extracted from clinical records: general data, preoperative conditions, and pathological data of each lesion after surgery. In total, 23 patients with MEGC or HGIN were evaluated (average age 64 ± 6 years, 17 (73.9%) males). MEGC and HGIN accounted for 4.9 percent of all cases, in which 19 (4.1%) were synchronous multiple cancers and 4 (0.8%) cases were metachronous multiple cancers. Lesions of synchronous and metachronous MEGC groups did not differ in age, sex, smoking history, alcohol consumption, family history of tumors, Helicobacter pylori infection, mucosal background atrophy, or intestinal metaplasia (P > .05). The vertical locations of primary and secondary lesions of MEGC were correlated (R = 0.395, P = .034). The primary and secondary lesions of MEGC shared the same macroscopic subtype (R = 0.590, P = .015), infiltration depth (R = 0.455, P = .014), and pathological subtype (R = 0.736, P < .001). MEGC and HGIN were located in close proximity. Pathologic types tended to be low-grade malignancies. The macroscopic type, histology type, and infiltration depth of the 2 lesions were significantly correlated. When detecting early gastric cancer, we should inspect the stomach and carefully consider the pathological characteristics, to improve the diagnosis of MEGC.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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