The 
Image Library
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Pyloric Ulcer causing Stenosis
Pyloric ulcer causing stenosis
This is a typical ulcer in the pyloric region, surrounding pylorus, and causing pyloric stenosis. The ulcer - and the stenotic pylorus - is in the upper right part of the picture.
Prepyloric Ulcer causing Stenosis
An ulcer in the pyloric region typically causes stenosis of the pylorus channel. In these pictures, a tight pylorus is situated closely to the ulcer, just beneath the ulcer. This ulcer was benign, main cause probably Helicobacter pylori-infection
Gastric retention due to stenosis of the pylorus
The same patient as above, and this picture shows the gastric retention due to an impaired passage through the pylorus.
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Endoscopy Slide-Shows
Maps, Satellite Images of all Important Conference Cities
April 26, 2007