Successful endoscopic transection of a partially obstructing antral diaphragm.

A 14-yr-old girl presented with long-standing symptoms of partial gastric outlet obstruction due to an antral mucosal diaphragm that had a central aperture of 4-5 mm. The literature of this congenital malformation is reviewed with respect to diagnostic criteria and feasibility of endoscopic transection. The procedure and outcome of this first successful endoscopic transection of a partially obstructing antral diaphragm are reported.