Acute and Chronic Gastritis Flashcards
Acute Gastritis Etiology?
Drugs (eg, NSAIDs); alcohol; smoking; severe stress; systemic infections; uremia
Chronic Gastritis Etiology?
Type A is an autoimmune disorder
Type B is caused by Helicobacter pylori infection
Acute Gastritis gross fx?
subepithelial hemorrhages,
petechiae,
punctate erosion
Acute Gastritis histo fx?
neutrophilic infiltration with purulent and hemorrhagic exudate
Chronic Gastritis gross fx?
Thickened and reddened rugal folds in fundus (type A) or antrum (type B);
with long-standing disease, mucosa may become atrophic
Chronic Gastritis histo fx?
lymphocytic infiltrate in lamina propria;
lymphoid aggregates;
presence of H pylori among microvilli (type B);
hyperplasia of G cells (type A);
presence of intestinal metaplasia or dysplastic cells
Acute Gastritis clinical signs?
Anorexia; epigastric pain; nausea; vomiting; hematemesis (coffee ground emesis)
Chronic Gastritis Type A clinical signs?
fatigue;
indigestion and diarrhea;
pallor;
mild splenomegaly
Chronic Gastritis Type A lab findings?
autoantibodies to parietal cells;
pernicious anemia;
macrocytic anemia;
B12 deficiency;
positive Schilling test
Chronic Gastritis Type B clinical signs?
asymptomatic;
associated with peptic ulcer
Chronic Gastritis Type B lab findings?
positive H Pylori serology or stool antigen
Chronic Gastritis complications?
gastric carcinoma
Acute Gastritis Treatment?
H2-receptor antagonists or proton pump inhibitors
Chronic Gastritis Treatment?
Parenteral vitamin B12 for type A
triple therapy (bismuth, metronidazole, tetracycline, or amoxicillin for type B