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Intravascular papillary endothelial hyperplasia of the extremities: MR imaging findings with pathologic correlation

Sang Hoon Lee1, Jin-Suck Suh, Byung Il Lim

  • 1Department of Diagnostic Radiology, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, 132 Shinchondong, Seodaemoon-gu, 120-752 Seoul, Korea.

European Radiology
|December 23, 2003
PubMed

Insights

Intravascular papillary endothelial hyperplasia (IPEH) is a non-neoplastic vascular lesion. MRI reveals complex signal intensities in IPEH due to thrombi and hyperplastic tissue, aiding diagnosis.

Area of Science:

  • Vascular Pathology
  • Medical Imaging
  • Radiology

Background:

  • Intravascular papillary endothelial hyperplasia (IPEH) is a rare, non-neoplastic vascular lesion.
  • IPEH is often associated with thrombi, complicating its imaging appearance.
  • Understanding MRI characteristics is crucial for accurate diagnosis.

Observation:

  • This study presents MRI findings in three cases of IPEH in the extremities.
  • Correlations were made between MRI and pathological findings.
  • IPEH lesions demonstrated complex signal intensities on MRI.

Findings:

  • Thrombi within IPEH showed slightly hyperintense signals on T1- and T2-weighted images, indicative of subacute hemorrhage.
  • Papillary endothelial hyperplastic tissue appeared isointense or hyperintense to muscle on T1- and T2-weighted images.
  • Variable enhancement patterns were observed on Gd-DTPA-enhanced MRI sequences.

Implications:

  • Accurate MRI interpretation can help differentiate IPEH from other vascular lesions.
  • These findings contribute to the diagnostic imaging of IPEH.
  • Improved understanding of IPEH MRI characteristics aids in clinical management.

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