Displaying items by tag: cerebello-pontine

hs/sb
Date : 00.00.00

Name of the Patient : Abc XyzNanilmn / M / 51 yrs.
Referred by : Dr. Abc Xyzsbekar / Dr. Abc Xyzkhwa.
Examination : M.R.I. of the Brain.

CLINICAL PROFILE :

C/O loss of hearing on the right side since 1 1/2 months.

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 is evidence of a fairly well-defined extra-axial mass lesion located in the right cerebello-pontine angle cistern and measuring approximately 2.9 x 2.1 x 2.9 cms. This lesion is hypointense on the T1 Weighted images and turns heterogeneously hyperintense on the proton and T2 Weighted images. It is seen to extend into the right internal auditory canal. Also seen is indentation upon the pons and middle cerebellar peduncle on the right side with slight deformation of the fourth ventricle.

There is mild fullness of both the lateral ventricles. The third ventricle is normal. No obvious vascular anomaly is identified on this study.

IMPRESSION :

The MRI features are suggestive of an extra-axial mass lesion
located in the right cerebello-pontine angle cistern and measuring approximately 2.9 x 2.1 x 2.9 cms. This most likely represents an acoustic neurinoma (less likely to be an epidermoid).

A contrast enhanced scan may be worthwhile.