sb/bv
Date : 00.00.00

Name of the Patient : Abc Xyzee B. Mlmn / F / 70 yrs.
Referred by : Dr. Abc Xyzah.
Examination : M.R.I. of the Brain.

CLINICAL PROFILE :

C/O headaches with ptosis of the right eye since 8 days.

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 and STIR coronal images.

A limited MRA sequence was obtained through the region of interest.

OBSERVATION :

There is seen an approximately, 2.0 cms diameter sized well-marginated mass lesion in the region of the right cavernous sinus. This lesion is of low signal intensity centrally on the T1 Weighted images and on the T2 Weighted images. The periphery of the lesion appears hyperintense on all the pulse sequences. The cavernous segment of the right internal carotid artery appears slightly smaller in diameter when compared to the left.

The pituitary gland, left cavernous sinus and the optic nerves on either side are unremarkable.

There are ill-defined hyperintense areas on the proton and T2 Weighted images in the right frontal periventricular white matter, posterior parietal white matter bilaterally and in the bilateral centrum semiovale. These lesions appear isointense to normal white matter on the T1 Weighted images.



Both the lateral, third and the fourth ventricles are normal.
There is slight prominence of the cerebral cortical sulci and the basal cisternal spaces. There is no shift of the midline structures.

Inflammatory changes are seen in the posterior ethmoidal air cells.

The vertebro-basilar system is ectatic.

The limited MRA sequence reveals a small calibre cavernous segment of the right internal carotid artery. The previously described mass lesion is in close relation to this vessel. Flow signal is also noted within the centre of this lesion.

IMPRESSION :

1. An approximately, 2.0 cms diameter sized well-marginated mass lesion in the region of the right cavernous sinus with signal characteristics and relations as described most likely represents a partially thrombosed aneurysm arising from the cavernous segment of the right internal carotid artery.

2. Altered signal in the right frontal periventricular white matter, posterior parietal white matter bilaterally and in the bilateral centrum semiovale most likely represent ischemic changes.