hs/sb/nl/nl
Date : 00.00.00

Name of the Patient : Abc XyzBharlmn / F / 18 yrs.
Referred by : Dr. Abc Xyzmpat.
Examination : M.R.I. of the Brain.

CLINICAL PROFILE :

C/O headaches since 3-4 days.
C/O left LMN facial palsy since 1 day.

EXAMINATION :

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

5 mm thick T1 Weighted, proton and T2 Weighted axial images.
5 mm thick T1 Weighted and T2 Weighted (with fat saturation) coronal images.
5 mm thick T1 Weighted sagittal images.

After administration of contrast, the following parameters were used :

5 mm thick T1 Weighted axial images with magnetization transfer.
5 mm thick T1 Weighted coronal and sagittal images.

FEW IMAGES SHOW PATIENT MOTION.

OBSERVATION :

There are diffuse, irregularly defined areas of hypointensity on the T1 Weighted images which turn hyperintense on the proton and T2 Weighted images within the left petrous bone. It is also seen to involve the middle ear, mastoid air cells and internal ear on the left side. There is erosion of the bone with extension into the left temporal fossa with involvement of the meninges along the postero-inferior and medial aspect of the left temporal bone. There is thickening of the seventh and eighth cranial nerve complex within the left internal auditory canal. After contrast administration, the bulk of this lesion shows fairly homogeneous enhancement.








There is no focal area of abnormal enhancement within the brain parenchyma per se on this scan.

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

Inflammatory changes are noted within the maxillary sinuses bilaterally, sphenoid sinus and ethmoidal air cells.

IMPRESSION :

The MRI features are suggestive of a pathologic process involving the petrous temporal bone on the left side with intracranial extensions as described. This most likely represents an infective process (less likely to represent a neoplastic process).