Published online Aug 14, 2018. doi: 10.3748/wjg.v24.i30.3462
Peer-review started: May 26, 2018
First decision: July 6, 2018
Revised: July 9, 2018
Accepted: July 16, 2018
Article in press: July 16, 2018
Published online: August 14, 2018
A 14-year-old girl visited our hospital due to a 5-year history of repeated hematochezia.
Heterotopic gastric mucosa (HGM) and a concomitant diverticulum in the rectum found through colonoscopy examination.
CA 19-9 was 61.2 U/mL, hemoglobin was 116 g/L, and stool occult blood examination was weakly positive. Other laboratory results were close to normal.
At colonoscopy, a solitary superficial depressed lesion, approximately 5 cm in size, with a diverticular cavity was identified in the rectum. Abdominal computed tomography revealed no obvious gastrointestinal lesions.
The pathology test confirmed the diagnosis of HGM.
Endoscopic submucosal dissection.
To the best of our knowledge, this is the first report of large HGM lesion and a concomitant diverticulum in the rectum treated by endoscopic submucosal dissection (ESD).
HGM is the most commonly reported epithelial heterotopia and has been described as heteroplasia in organogenesis or metaplasia during the repair of damaged epithelium.
ESD is thought to be the safe and efficient treatment for HGM.