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The interrupted rim sign in acute cholecystitis: a method to identify the gangrenous form with MRI

Ivan Pedrosa1, Alessandro Guarise, Jeffrey Goldsmith

  • 1Department of Radiology, Beth Israel Deaconess Medical Center. Boston, Massachusetts 02215, USA. ipedrosa@caregroup.harvard.edu

Journal of Magnetic Resonance Imaging : JMRI
|August 26, 2003
PubMed

Insights

Magnetic resonance imaging (MRI) revealed patchy gallbladder mucosal enhancement in a patient with acute gangrenous cholecystitis. This finding on MRI correlated with pathological evidence of mucosal necrosis and inflammation.

Area of Science:

  • Radiology
  • Gastroenterology
  • Pathology

Background:

  • Acute gangrenous cholecystitis is a severe gallbladder inflammation.
  • Accurate imaging is crucial for diagnosis and management.

Observation:

  • A patient with acute gangrenous cholecystitis underwent magnetic resonance (MR) imaging.
  • Specific MR sequences utilized included gadolinium-enhanced fat-saturated T1-weighted gradient echo images.

Findings:

  • MR imaging demonstrated patchy enhancement of the gallbladder mucosa.
  • This interrupted rim of mucosal enhancement was observed on the MR images.
  • Histopathological examination confirmed patchy necrosis and inflammation of the gallbladder mucosa.

Implications:

  • MR imaging findings can indicate acute gangrenous cholecystitis.
  • Patchy mucosal enhancement on MRI may correlate with gallbladder wall necrosis.
  • This imaging pattern aids in the diagnosis of severe cholecystitis.

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