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MRI of groove pancreatitis

H Irie1, H Honda, T Kuroiwa

  • 1Department of Radiology, Kyushu University Faculty of Medicine, Fukuoka, Japan.

Journal of Computer Assisted Tomography
|July 24, 1998
PubMed
Abstract

Insights

Magnetic resonance imaging (MRI) effectively identifies fibrous scar tissue in groove pancreatitis, a chronic pancreatitis form. MR cholangiopancreatography offers valuable diagnostic insights for this condition.

Area of Science:

  • Gastroenterology
  • Radiology
  • Medical Imaging

Background:

  • Groove pancreatitis is a specific form of chronic pancreatitis.
  • It affects the groove region between the pancreatic head, duodenum, and common bile duct.

Purpose of the Study:

  • To describe the magnetic resonance imaging (MRI) findings in patients diagnosed with groove pancreatitis.
  • To evaluate the utility of MRI in visualizing the characteristic pathological changes.

Main Methods:

  • Review of MR images, including MR cholangiopancreatography, from five patients with groove pancreatitis.
  • Comparison of MRI findings with histological results in three patients who underwent pancreatoduodenectomy for duodenal stenosis.

Main Results:

  • A sheet-like mass was consistently observed in the groove between the pancreatic head and duodenum on MRI.
  • This mass appeared hypointense on T1-weighted images and iso- to slightly hyperintense on T2-weighted images.
  • Delayed enhancement of the mass was noted after Gd-DTPA administration, correlating with histological findings of fibrous scar tissue.

Conclusions:

  • MRI is capable of clearly demonstrating the fibrous tissue characteristic of groove pancreatitis.
  • MR cholangiopancreatography provides additional useful information for diagnosing groove pancreatitis.

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