A case of colon Ganglioneuroma resembling an inverted diverticulum on endoscopy

A 31-year-old male had a polypoid mucosal lesion, approximately 0.7 cm, located sigmoid colon.It had an inverted or invaginated base and could possibly be due to the inversion of diverticula (Fig. 1A). Detailed examination revealed that the central groove was not depressed, there was no concentric ring pattern, no concentric folds existed around the lesion, and the microvessels were mildly thickened (Fig. 1B). The mucosa was pressed and not folded or inverted. The titanium clip was fixed properly (Fig.