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Prepyloric mucosal diaphragm (antral web): report of a case and review of the literature.

A patient underwent operation for a gastric ulcer, proved radiologically and gastroscopically, and was found to have, in addition to the ulcer, a prepyloric mucosal diaphragm 1.5 cm proximal to the pylorus. This is the 26th such web reported in an adult, and only the fifth associated with peptic ulcer disease.