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Pontine glioma extending to the ipsilateral cavernous sinus and Meckel's cave: MR appearance

W T Yuh1, H D Nguyen, N A Mayr

  • 1Department of Radiology, University of Iowa College of Medicine, Iowa City 52242.

Insights

This study details an exophytic glioma of the pons extending into the Meckel

Area of Science:

  • Neuro-oncology
  • Neurosurgery
  • Radiology

Background:

  • Gliomas of the pons are rare, particularly exophytic variants.
  • Extension into adjacent structures like Meckel's cave and the cavernous sinus presents diagnostic challenges.

Observation:

  • An exophytic glioma originating in the pons was observed to invade the Meckel's cave and cavernous sinus.
  • The patient was a 75-year-old male presenting with symptoms related to cranial nerve V involvement.

Findings:

  • The pontine glioma presented as a hyperintense, complex cystic mass on imaging.
  • The tumor's location and appearance mimicked other pathologies affecting the trigeminal nerve (cranial nerve V) distribution.

Implications:

  • Pontine gliomas should be considered in the differential diagnosis for complex cystic masses in the trigeminal nerve pathway.
  • This case highlights the importance of considering rare glioma presentations in neuroimaging interpretation.

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