• Inflammation of the GASTRIC MUCOSA, a lesion observed in a number of unrelated disorders.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• Inflammation of the lining of the stomach.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• Inflammation of the stomach.
  CRISP Thesaurus
  National Institutes of Health, 2006
• The presence of inflammation of the gastric mucous membrane.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• A disorder characterized by inflammation of the stomach.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021
• Gastritis is inflammation of the gastric mucosa caused by any of several conditions, including infection (Helicobacter pylori), drugs (nonsteroidal anti-inflammatory drugs, alcohol), stress, and autoimmune phenomena (atrophic gastritis). Many cases are asymptomatic, but dyspepsia and gastrointestinal bleeding sometimes occur. Diagnosis...
  Merck Manuals
  Merck & Co., Inc., 2020
• Gastritis is a general term for a group of conditions with one thing in common: inflammation of the lining of the stomach. The inflammation of gastritis is most often the result of infection with the same bacterium that causes most stomach ulcers. Regular use of certain pain relievers and drinking too much alcohol also can contribute to...
  Mayo Clinic
  Mayo Foundation for Medical Education and Research
• Gastritis is defined as the histologic presence of gastric mucosal inflammation. The broader term gastropathy encompasses lesions characterized by minimal or no inflammation.
  Epocrates
  Athenahealth, Inc., 2019
• Gastritis, acute or chronic inflammation of the mucosal layers of the stomach. Acute gastritis may be caused by excessive intake of alcohol, ingestion of irritating drugs, food poisoning, and infectious diseases. The chief symptoms are severe upper-abdominal pain, nausea, vomiting, loss of...
  Encyclopedia Britannica
  Encyclopedia Britannica, Inc., 2020