Endoscopic Resection of Early Gastric Cancer and Pre-Malignant Gastric Lesions

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Abstract

Early gastric cancer comprises gastric malignancies that are confined to the mucosa or submucosa, irrespective of lymph node metastasis. Endoscopic resection is currently pivotal for the management of such early lesions, and it is the recommended treatment for tumors presenting a very low risk of lymph node metastasis. In general, these lesions consist of two groups of differentiated mucosal adenocarcinomas: non-ulcerated lesions (regardless of their size) and small ulcerated lesions. Endoscopic submucosal dissection is the technique of choice in most cases. This procedure has high rates of complete histological resection while maintaining gastric anatomy and its functions, resulting in fewer adverse events than surgery and having a lesser impact on patient-reported quality of life. Nonetheless, approximately 20% of resected lesions do not fulfill curative criteria and demand further treatment, highlighting the importance of patient selection. Additionally, the preservation of the stomach results in a moderate risk of metachronous lesions, which underlines the need for surveillance. We review the current evidence regarding the endoscopic treatment of early gastric cancer, including the short-and long-term results and management after resection.

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Vasconcelos, A. C., Dinis-Ribeiro, M., & Libânio, D. (2023, June 1). Endoscopic Resection of Early Gastric Cancer and Pre-Malignant Gastric Lesions. Cancers. Multidisciplinary Digital Publishing Institute (MDPI). https://doi.org/10.3390/cancers15123084

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