Published online Jun 28, 2017. doi: 10.3748/wjg.v23.i24.4462
Peer-review started: February 9, 2017
First decision: March 3, 2017
Revised: March 21, 2017
Accepted: May 19, 2017
Article in press: May 19, 2017
Published online: June 28, 2017
Processing time: 143 Days and 19.2 Hours
Traditional serrated adenoma (TSA) is a type of serrated polyp of the colorectum and is thought to be a precancerous lesion. There are three types of serrated polyps, namely, hyperplastic polyps, sessile serrated adenomas/polyps, and TSAs. TSA is the least common of the three types and accounts for about 5% of serrated polyps. Here we report a pediatric case of TSA that was successfully resected by endoscopic submucosal dissection (ESD). This rare case report describes a pediatric patient with no family history of colonic polyp who was admitted to our hospital with hematochezia. On colonoscopy, we found a polypoid lesion measuring 10 mm in diameter in the lower rectum. We selected ESD as a surgical option for en bloc resection, and histopathological examination revealed TSA. The findings in this case suggest that TSA with precancerous potential can occur in children, and that ESD is useful for treating this lesion.
Core tip: Most pediatric colonic polyps are juvenile polyps, and the prevalence of colorectal serrated lesions in this age group is unknown. This case report describes a rare pediatric traditional serrated adenoma that was removed by en bloc resection via endoscopic submucosal dissection.