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Year : 2000  |  Volume : 48  |  Issue : 2  |  Page : 198

A case of coexisting cerebellopontine angle meningioma and schwannoma.


Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, 560029, India.

Correspondence Address:
Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, 560029, India.



How to cite this article:
Chandra P S, Hegde T. A case of coexisting cerebellopontine angle meningioma and schwannoma. Neurol India 2000;48:198


How to cite this URL:
Chandra P S, Hegde T. A case of coexisting cerebellopontine angle meningioma and schwannoma. Neurol India [serial online] 2000 [cited 2020 Oct 29];48:198. Available from: https://www.neurologyindia.com/text.asp?2000/48/2/198/1536




A 35 year old female presented with progressive right sided hearing loss, tinnitus and giddiness for a period of 3 years. Over the past 6 months, she develpoed gait ataxia and increasingly severe headaches. Examination revealed bilateral early papilloedema, bilateral gaze evoked nystagmus, right sensory neural deafness and right sided cerebral signs. There were no cutaneous markers. MRI showed a 'dumb-bell' well defined extra-axial tumour in the right cerebellopontine angle iso to midly hyperintense on T1 sequence [Figure. 1] becoming hyperintense on T2 weighted images. The ventrally placed component had both solid and cystic component (arrowhead). The lesion (both the components of the 'dumb-bell') was enhancing markedly with gadolinium contrast except the cystic part [Figure. 2]. A retromastoid suboccipital craniectomy was performed. During the surgery, two separate tumours were encountered. The dorsally placed tumour was greyish, vascular and was attached to the petrous bone. Frozen section revealed a meningioma. The ventrally placed portion could be completely separated from the dorsal part. This was soft, and contained a large cystic component. Frozen section of this part revealed a schwannoma. Both the tumours were excised totally and the facial nerve was preserved. Histopathology confirmed existence of both meningioma and schwannoma. Coexisting meningioma and schwannoma is quite uncommon and the presence of a 'dumb-bell' image may suggest such a condition.

 

 

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