Acoustic schwannoma - large with cystic change
Left sided hearing loss.
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T1 C+ fat sat
The patient went on to have a resection.
Brain, left acoustic lesion: Schwannoma.
Sections show a variably cellular tumour with compact areas of fascicular growth pattern and prominent nuclear palisading and less cellular regions composed of reticular cells in a microcystic pattern. There are sclerotic blood vessels, hemosiderin-laden macrophages and focal chronic inflammation.