Proximal gastric diverticulum after anterior lesser curve seromyotomy

A case of gastric diverticulum arising in a patient who had previously unde rgone anterior lesser curve seromyotomy for chronic duodenal ulcer disease is reported. The endoscopic appearance of this lesion is described and the potential mechanisms of causation are reviewed. The clinical relevance of t his rare finding is examined with emphasis on the need for an index of awar eness of this abnormality on the part of endoscopists and in particular, on the risks of injudicious biopsy of such a diverticulum. Copyright (C) 2001 S. Karger AG, Basel.