Date : 00.00.00

Name of the Patient : Abc Xyzv Hundlmn / M / 28 yrs.
Referred by : Dr. Abc Xyzdar.
Examination : M.R.I. of the Brain.

CLINICAL PROFILE :

C/O left retromastoid craniotomy with excision of cerebello-pontine angle tumor (VIIIth nerve schwannoma) on 00.00.00.
C/O tinnitus in the left ear with decreased hearing.
For follow-up.

EXAMINATION :

M.R.I of the brain was performed using the following parameters :

5 mm thick T1 Weighted, proton and T2 Weighted axial images.

3 mm thick T1 Weighted coronal images.

5 mm thick T1 Weighted sagittal images.

MR Cisternogram was obtained in the coronal plane.

OBSERVATION :

There are post-operative changes in the occipital and mastoid region on the left side.

There is widening of the CSF space in the region of the left internal auditory meatus/canal. The seventh and eighth cranial nerve complex is not well-visualized in this region.

Areas which are iso to hyperintense to CSF on all the pulse sequences are noted within the left cerebellar hemisphere. These would represent encephalomalacic changes, probably the result of previous surgery.

Both the lateral and third ventricles show fullness. The fourth ventricle is normal.
There is no shift of the midline structures. No obvious vascular anomaly is identified on this study.


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IMPRESSION :

The MRI features are suggestive of widening of the CSF space in the region of left internal auditory meatus/canal as described.

No obvious residual mass lesion is identified on this non-enhanced study of the internal auditory meatus.

If clinically indicated a contrast enhanced study may be worthwhile.