Date : 00.00.00
Name of the Patient : Abc Xyzi R. Dhlmn / F / 15 yrs.
Referred by : Dr. Abc Xyzah.
Examination : M.R.I. of the Brain.
CLINICAL PROFILE :
C/O headaches since 6-7 months.
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.
5 mm thick T1 Weighted sagittal images.
MR cisternogram was obtained in the sagittal plane.
There is seen a fairly large, approximately 5.8 x 4.2 x 3.8 cms sized well-defined mass lesion in the right cerebellar hemisphere. This lesion follows CSF signal on all the pulse sequences. This lesion is not in communication with the fourth ventricle or the cerebellar cisterns. There is resultant compression of the fourth ventricle, aqueduct and brainstem which is displaced slightly to the left. There is also cerebellar tonsillar herniation through the foramen magnum. There is mild to moderate dilatation of both the lateral and third ventricles with slight periventricular white matter hyperintense signal on the T2 Weighted images suggesting periventricular CSF ooze. Effacement of the cortical sulcal spaces in the cerebral hemispheres, bilaterally, is noted.
The basal cisternal spaces are unremarkable. No obvious vascular anomaly is identified on this study.
Inflammatory changes are noted in the ethmoidal air cells bilaterally.
A fairly large, approximately 5.8 x 4.2 x 3.8 cms sized mass lesion in the right cerebellar hemisphere as described, is not specific for a single etiology. A cystic astrocytoma or a hemangioblastoma should be considered in the differential diagnosis. There is mild to moderate obstructive hydrocephalus.
A contrast enhanced scan may be worthwhile.