Acute gastritis

Acute gastritis is a broad term for myriad causes of gastric mucosal inflammation. 

Depends on the aetiology (see below). 

  • asymptomatic
  • epigastric pain/tenderness
  • nausea and vomiting
  • loss of appetite
Aetiology
  • infection: H. pylori (most common)
  • systemic illness: trauma and burns
  • pharmacological/medication: NSAIDS
  • autoimmune
  • caustic ingestion
  • acid/alkali ingestion
  • immunosuppression/AIDS-related 
    • cytomegalovirus
    • candida albicans
    • histoplasmosis
    • cryptosporidiosis
    • toxoplasmosis
  • eosinophillic gastritis
CT

CT findings can suggest gastritis and detect complications such as gastric perforation, however, often gastritis and tumors cannot be easily differentiate on CT. Moreover, causes of gastritis cannot be determine on CT. Both circumstances require clinical/lab correlation, probable endoscopy examination and tissue biopsy 1-2.

CT findings suggestive of gastritis include:

  • gastric wall oedema: measuring the HU maybe useful to differentiate oedema from low attenuation neoplastic lesion
  • halo sign: mucosal enhancement surrounded by submocosal and gastric wall oedema
Share Article

Article Information

rID: 21042
Section: Gamuts
Tag: cases
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

  • Drag
    Case 1
    Drag here to reorder.
  • Drag
    Case 2
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.