Acoustic schwannoma (large with intratumoral hemorrhage)

Case contributed by Juan José Gómez Muga
Diagnosis certain


Headache and vomiting.

Patient Data

Age: 70
Gender: Female

Rounded hyperdense lesion with mild surrounding edema in the left cerebellopontine angle.

Left cerebellopontine angle extra-axial mass with a hemorrhagic component. It shows extension through the internal auditory meatus and displays enhancement onthe post-contrast study.

Case Discussion

Diagnosis of acoustic schwannoma was proven following resection.


Spindle cell proliferation with irregular nuclei and occasional palisading. Sclerotic, hyalinized  blood vessels. Focal chronic inflammation with perivascular lymphoid infiltrates and hemosiderin-laden macrophages.

Final diagnosis: Acoustic schwannoma 

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