Presentation
Progressive left side hearing impairment
Patient Data
Left cerebellopontine angle solid mass with large cystic component displacing the adjacent brain stem and 4th ventricle to the right side.
Following surgical debulking the tumor is mainly solid and heterogenous with disappearance of the cystic component and shows avid enhancement and extension through the internal auditory canal. VP shunt tube is seen in situ with hemorrhage seen surround the proximal intracranial portion. Left cerebellar hemisphere malacic gliotic zone as post operative changes and left aspect of medulla oblongata abnormal signal like from compressive ischemia.
Case Discussion
Biopsy reveals vestibular shwannoma and the patient was prepared for Gamma knife therapy. Cerebellopontine angle tumor with auditory canal extension is suggestive of vestibular shwannoma.
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