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Pancreatic neoplasms: MR imaging and pathologic correlation

P J Mergo1, T K Helmberger, P C Buetow

  • 1Department of Radiology, University of Florida College of Medicine, Gainesville 32610-0374, USA.

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|March 1, 1997
PubMed
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Magnetic resonance (MR) imaging helps detect pancreatic neoplasms. This study details MR imaging features of rare pancreatic tumors, correlating them with pathology for better characterization.

Area of Science:

  • Radiology
  • Oncology
  • Gastroenterology

Background:

  • Magnetic resonance (MR) imaging is crucial for diagnosing pancreatic neoplasms.
  • While common tumors like ductal adenocarcinoma are well-characterized, imaging features of rare pancreatic neoplasms remain less understood.

Purpose of the Study:

  • To elucidate the MR imaging characteristics of various unusual pancreatic neoplasms.
  • To correlate MR imaging findings with gross and histologic features for improved diagnostic accuracy.

Main Methods:

  • Review of MR imaging appearances of uncommon pancreatic tumors.
  • Correlation of imaging findings with histopathologic data.
  • Analysis of signal intensities on T1- and T2-weighted images and gadolinium enhancement patterns.

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Main Results:

  • General MR imaging features include high T2 signal intensity and variable T1 signal intensity (intermediate to low).
  • Gadolinium enhancement patterns aid in differentiating tumor types.
  • Specific imaging findings for mucin-hyper-secreting carcinoma, serous microcystic neoplasm, mucinous macrocystic neoplasm, solid and papillary epithelial neoplasm, von Hippel-Lindau disease-associated cysts, acinar cell carcinoma, pancreaticoblastoma, and endocrine neoplasms were discussed.

Conclusions:

  • Understanding the MR imaging features of both common and unusual pancreatic neoplasms, supported by pathologic correlation, enhances diagnostic capabilities.
  • MR imaging plays a vital role in the comprehensive evaluation and characterization of the diverse spectrum of pancreatic neoplasms.