ArticleWorld journal of gastrointestinal oncology2025
Clinical and endoscopic characteristics of colorectal traditional serrated adenomas with dysplasia/adenocarcinoma in a Korean population.
Article in World journal of gastrointestinal oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundTraditional serrated adenoma (TSA) is a rare and precancerous lesion of colorectal cancer. The clinical and endoscopic differentiations between TSAs without dysplasia or adenocarcinoma (TSAOs) and TSAs with dysplasia or adenocarcinoma (TSADs) remain unclear.
aimTo evaluate the characteristics of colorectal TSAs and compare the characteristics of TSAOs with those of TSADs.
methodsThis retrospective study included 193 patients who underwent endoscopic resection and received a pathologic diagnosis of TSA. We reviewed the medical, endoscopic, and histopathologic records of patients who underwent endoscopic resection of TSAs between January 2010 and December 2023.
resultsTSAs were more frequently located in the rectosigmoid colon. Most TSAs had 0-Ip, 0-Isp, or 0-Is morphologies. The TSAD lesions were larger than TSAO lesions. TSAD lesions more commonly had a red color and an irregular border than TSAO lesions. TSAOs were usually treated using conventional endoscopic mucosal resection, whereas TSADs were treated using conventional endoscopic mucosal resection, endoscopic submucosal dissection, and surgery. Post-polypectomy bleeding was more common with TSADs than with TSAOs. Univariate analysis showed that gastrointestinal bleeding, red color, 0-IIa, irregular border, and lobular mucosal surface were significantly associated with TSADs. Multivariate analysis showed that gastrointestinal bleeding, an irregular border, and a lobular mucosal surface were significantly associated with TSADs.
conclusionTSAs with gastrointestinal bleeding, an irregular border, and a lobular mucosal surface are associated with an increased risk of dysplasia or adenocarcinoma.
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