Abstract
A prepyloric antral diaphragm is a rare anomaly of the gastric antrum that results from incomplete canalization of the foregut during the fifth and sixth weeks of embryonic development.1 Others believe that an antral diaphragm can be an acquired abnormality.2 About 150 cases have been reported since the initial description by Touroff et al.3 in 1940. Histologically, the antral diaphragm consists of normal gastric mucosa, submucosa, and muscularis mucosa.4 Symptoms depend on the size of the diaphragm’s aperture. If the aperture is less than 1 cm, obstructive symptoms are likely to be present. The usual treatment of these patients has been surgical resection of the diaphragm. Other treatments have included endoscopic resection with a snare,5 endoscopic transection with a papillotome,6 and endoscopic laser therapy.7 We report the case of a successful endoscopic ablation of an antral diaphragm.
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