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A 44 year old woman presented with tinnitus of the right ear.
Coronal T1-weighted with gadolinium MRI scans. Note the small nodular mass which then runs laterally and strongly enhances with gadolinium. On biopsy, this lesion was a schwannoma, a histologically benign tumor. Schwannomas are characteristically seen arising from cranial nerve VIII, where they are known as acoustic neuromas.
Revised
05/16/06.
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School of Medicine.