Cystic acoustic schwannoma

Case contributed by A.Prof Frank Gaillard

Presentation

Sensorineural hearing loss.

Patient Data

Age: 60
Gender: Female
MRI

A partially cystic mass is seen in the left cerebellopontine angle with solid enhancing component extending into the acoustic meatus. 

Features are characteristic of an acoustic schwannoma. 

Case Discussion

This patient went on to have a retrosigmoid craniotomy and excision of the mass. 

Histology

MICROSCOPIC DESCRIPTION:

The paraffin sections show fragments of a moderately hypercellular neurilemmoma (Schwannoma). This is composed of both Antoni A and B type tissues. Moderately well formed Verocay bodies are noted in Antoni A areas. Tumour cells have uniform nuclear features. No mitotic figures, densely hypercellular areas of areas of necrosis are identified.

FINAL DIAGNOSIS:

Schwannoma

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Case information

rID: 32586
Case created: 4th Dec 2014
Last edited: 5th Sep 2017
Inclusion in quiz mode: Included

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