Acoustic schwannoma (large with intratumoral hemorrhage)

Case contributed by Dr Juan José Gómez Muga

Presentation

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.

Histology:

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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Case information

rID: 50502
Published: 29th Sep 2017
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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