1499
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Helicobacter heilmannii gastritis
Stomach
Giemsa-C
64 years
female
The patient reports upper abdominal pain. During endoscopy no abnormalities of the gastric mucosa was seen, whereas the duodenal mucosa appeared slightly atrophic.
Oxyntic- and antrum-type mucosa with mild chronic and active inflammation. No intestinal metaplasia. There is focal presence of few slightly elongated bacteria compatible with Helicobacter heilmannii.
The most common isolate in bacterial gastritis is H. pylori. Another variant is H. heilmannii and represents less than 1% of all isolates. Morphologically, organisms are more tightly coiled and longer. They are fully capable of inducing gastritis and can also be associated with MALT lymphoma and adenocarcinoma.
Philippe Brunner, University of Basel
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