A Rare and Unusual Rectal Tumor

An asymptomatic 51-year old man presented for screening colonoscopy. An unusual rectal lesion was seen at about 5 cm from the anal verge. It had an elongated shape with a pocket-like centre and heaped-up borders. The mucosa inside the pocket had round pits as well as a villous architecture. Forceps biopsy revealed gastric mucosa, and rectal gastric heterotopia was suspected. Because of its potential to develop malignancy, an endoscopic en-bloc resection was performed. Surprisingly, histopathology showed both gastric and pancreatic tissue, making this case an extremely rare and unusual report of a mixed gastric and pancreatic heterotopia in the rectum.

Citation: Ebigbo A, Fleischmann C, Messmann H eP182V A RARE AND UNUSUAL RECTAL TUMOR. Endoscopy 2021; 53: S156.

Publication History

Article published online:
19 March 2021