Left sided sensory neural hearing loss.
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An enhancing, somewhat T2 hyperintense mass, is present in the left cerebellopontine angle, and extends into the acoustic meatus.
The patient went on to have a retrosigmoid craniotomy and resection of the mass.
Sections show a benign spindle cell tumour displaying Antoni A and Antoni B areas, and focal Verocay body formation, typical of an acoustic schwannoma.