Magnetic resonance imaging of ecchordosis physaliphora--case report

Neurol Med Chir (Tokyo). 1994 Jul;34(7):448-50. doi: 10.2176/nmc.34.448.


A rare case of ecchordosis physaliphora clearly demonstrated by magnetic resonance (MR) imaging is described in a 48-year-old male who presented with right hearing disturbance and reduction in sensation in the right side of his face due to a large cystic schwannoma. MR imaging revealed the large cystic schwannoma as well as an abnormal clival lesion. The clival lesion was hypointense on T1-weighted images and hyperintense on T2-weighted images, and not enhanced by gadolinium-diethylenetriamine-penta-acetic acid (Gd-DTPA) administration. The clival lesion was partially removed. The histological diagnosis was ecchordosis physaliphora. The postoperative course was uneventful. The absence of enhancement of ecchordosis physaliphora by Gd-DTPA administration may be a characteristic finding, in contrast to chordoma which is generally enhanced.

Publication types

  • Case Reports

MeSH terms

  • Brain Neoplasms / complications
  • Brain Neoplasms / diagnostic imaging*
  • Brain Neoplasms / pathology
  • Cerebellopontine Angle / diagnostic imaging*
  • Cerebellopontine Angle / pathology
  • Functional Laterality
  • Humans
  • Magnetic Resonance Imaging*
  • Male
  • Middle Aged
  • Neurilemmoma / complications
  • Neurilemmoma / diagnostic imaging
  • Neurilemmoma / pathology
  • Photomicrography
  • Tomography, X-Ray Computed