kaneko chiyuki

Helicobacter pylori (H. pylori) is a very important pathogenic bacteria associated with many upper gastrointestinal diseases including chronic active gastritis, chronic inactive gastritis, gastric and duodenal peptic ulcer disease, gastric MALT lymphoma, and gastric adenocarcinoma. There are no distinct endoscopic patterns of chronic H. pylori gastritis. The diagnosis of H. pylori gastritis is made by pathologic examination of gastric mucosal biopsies or by the detection of urease in mucosal specimens using the CLO test or urea breath test.  H. pylori infection has been diagnosed based on the histological laboratory procedure and indirectly from a background gastric-mucous-membrane view. Alcian Yellow Touidine Blue staining is available and useful as one of the diagnostic methods.