Acute hemorrhagic & erosive gastritis
Diffuse hyperemia with punctate haemorrhagesMultiple generally small ulcers & erosions are present.
Helicobacter gastritis Staining of the gastric biopsy shows the characteristic curved rods embedded in the mucin layer of the stomach. Helicobacter organisms may be tested for urease activity.
Rod-shaped organisms are present along the luminal surfaces of the epithelium and in the luminal mucus. They do not invade the mucosa. They are best seen on giemsa stain, where they stain bluish-purple.
H. pylori gastritis (Giemsa stain)
Autoimmune chronic gastritis Anti-parietal cell antibody Immunofluorescence technique
Heavy mainly chronic inflammatory cell infiltration of the lamina propria with glandular destruction (mucosal atrophy)Chronic gastritis
Chronic gastritis
Lt. heavy chronic inflammatory cell infiltration of the lamina propria with acute neutrophilic component; a collection of neutrophils is present within & outside one of the glands (arrows). Rt. Heavy infiltration by plasma cells with glandular destruction.Chronic atrophic gastritis with intestinal metaplasia
The surface & the crypts are lined by columnar epithelium interspersed with goblet cells. Note the marked mucosal atrophy and the presence of some chronic inflammatory cell infiltration.