PMC3364042_01
Oesophagogastroduodenoscopy image. The opening of a middle-sized diverticulum at the prepyloric region was demonstrated. The pylorus adjacent anteriorly to the diverticulum was not obstructed.
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F1
An oesophagogastroduodenoscopy (fig. 1) was performed in an attempt to identify the cause of his symptoms and a middle-sized diverticulum was found in the prepyloric region only a few centimetres from the pyloric opening without causing outflow obstruction.