Acoustic schwannoma

Case contributed by Dr Ammar Haouimi

Presentation

Left facial paresthesia in the territory of the trigeminal nerve (V1).

Patient Data

Age: 50 years
Gender: Male
MRI

The MRI sequences demonstrate a solid/cystic mass of the left cerebellopontine angle measuring (5x3x 3 cm) of low signal intensity on T1WI, heterogeneous high signal intensity on T2WI, and FLAIR with heterogeneous enhancement mainly of the solid component on postcontrast sequences. Mild extension into an enlarged ipsilateral internal auditory canal. A mass effect is noted on the midbrain, left cerebellar hemisphere as well as the 4th ventricle. Moderate dilatation of the 3rd, and lateral ventricle with mild periventricular interstitial edema, indicating obstructive hydrocephalus.

Case Discussion

MRI features characteristic of an acoustic schwannoma.

Additional contributor: Takieddine Arar, MD CHU, Batna Algeria.

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Case information

rID: 67808
Published: 25th Apr 2019
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included
Institution: Aurès Medical Imaging Center - Batna Algeria

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