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Multiple hereditary exostoses: A pseudoaneurysm masquerading as tumor.

Hari Trivedi1, Thomas M Link1, Richard J O'Donnell2

  • 1Department of Radiology and Biomedical Imaging, University of California, San Francisco, USA.

Journal of Radiology Case Reports
|October 21, 2016
PubMed
Summary

Multiple hereditary exostoses (MHE) can cause rare vascular issues. This case highlights MHE leading to a deep femoral artery pseudoaneurysm, rupture, and hematoma mimicking a tumor.

Keywords:
CTMRIUltrasoundcomplicationshematomametaphyseal tumormultiple hereditary exostosesmultiple hereditary osteochondromaspseudoaneurysm

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Area of Science:

  • Orthopedics
  • Vascular Surgery
  • Genetics

Background:

  • Multiple hereditary exostoses (MHE) is an autosomal dominant disorder.
  • Characterized by the development of numerous benign osteochondromas.
  • MHE complications, though rare, can involve vascular abnormalities.

Observation:

  • A case of MHE presented with a deep femoral artery pseudoaneurysm.
  • The pseudoaneurysm was located in the proximal medial thigh.
  • Rupture and hematoma formation occurred, clinically resembling a tumor.

Findings:

  • The pseudoaneurysm and subsequent rupture were directly linked to MHE.
  • The presentation mimicked a neoplastic mass due to the hematoma.
  • This underscores a rare but serious vascular complication of MHE.

Implications:

  • Highlights the importance of considering vascular complications in MHE patients.
  • Emphasizes the need for accurate diagnosis to differentiate vascular events from tumors.
  • Suggests vigilance for pseudoaneurysm formation and rupture in MHE cases.