hs/ke/nl
Date : 00.00.00

Name of the Patient : Abc Xyzi lmn / F / 64yrs.
Referred by : Dr. Abc Xyzah
Examination : M.R.I. of the Brain.

CLINICAL PROFILE :

C/O inability to see short distance objects from right eye since Cataract operation in October 0000.
Known diabetic.

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 FLAIR coronal images.

3 mm thick STIR coronal images.

After administration of contrast, the following parameters were used :

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

5 mm thick T1 Weighted sagittal images.

4 mm thick T1 Weighted coronal images with fat saturation.

OBSERVATION :

There is evidence of a well-defined lobulated extra-axial mass lesion which is near isointense to grey matter on all the pulse sequences in the frontal regions bilaterally. It is a broad based lesion with its base being towards the floor of the anterior cranial fossa.
Scan-00006


This lesion shows a CSF rim around it with presence of pial vessels at its periphery. This lesion is seen to extend into the ethmoidal air cells, sphenoid sinus, left superior orbital fissure and left orbital apex. Also seen is erosion of the medial wall of the left orbit with extension into the left orbit and displacement of the medial rectus muscle. The left optic nerve in the orbital apex cannot be identified separately from this lesion. The intracranial optic nerves, optic chiasm and pituitary stalk cannot be identified separately from this lesion.

The lesion is seen to compress upon the frontal lobes with superior and lateral displacement with underlying white matter edema. Also seen is compression and splaying of the frontal horns bilaterally. There is compression upon the genu of the corpus callosum. Also seen is displacement of the anterior and middle cerebral arteries. The lesion is seen to occupy the suprasellar cistern.

After contrast administration this lesion shows dense and homogeneous enhancement.

The third and fourth ventricles are unremarkable.

A polyp is noted in the left maxillary sinus.

IMPRESSION :

The MRI features are suggestive of a large extra-axial mass lesison in the bifrontal region with extensions as described and this most likely represents a meningioma.