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MR appearance of intracanalicular eighth nerve lipoma

T I Cohen1, S K Powers, D W Williams

  • 1Division of Neurosurgery, University of North Carolina, Chapel Hill.

Insights

This study details a rare intracanalicular eighth nerve lipoma, highlighting its MRI appearance and clinical signs. Biopsy confirmed the diagnosis, emphasizing the need for precontrast T1-weighted imaging in diagnosis.

Area of Science:

  • Neuroimaging
  • Neurosurgery
  • Pathology

Background:

  • Intracanalicular eighth nerve lipomas are rare tumors.
  • Accurate diagnosis relies on characteristic imaging findings and histopathology.

Observation:

  • A 30-year-old woman presented with symptoms attributed to an intracanalicular eighth nerve lipoma.
  • Magnetic resonance (MR) imaging revealed the characteristic appearance of the tumor.
  • Precontrast T1-weighted sequences are crucial for initial evaluation.

Findings:

  • The MR imaging features of the intracanalicular eighth nerve lipoma were presented.
  • Clinical manifestations associated with the tumor were described.
  • Biopsy findings provided conclusive histopathological diagnosis.

Implications:

  • This case underscores the importance of recognizing the MR appearance of eighth nerve lipomas.
  • Understanding the clinical presentation aids in timely diagnosis and management.
  • The study emphasizes the diagnostic utility of precontrast T1-weighted MR sequences for this rare condition.

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