Date : 00.00.00
Name of the Patient : Abc Xyz L. lmn / M / 50 yrs.
Referred by : Dr. Abc Xyzidhungat.
Examination : Intracranial and Neck M.R.A.
CLINICAL PROFILE :
C/O giddiness since 1 month.
C/O hearing loss bilaterally since 2 years.
The brain was screened with 5 mm thick T2 Weighted axial images.
Intracranial and neck MRA were performed with 3D TOF and 2D TOF sequences, respectively.
SOME IMAGES SHOW PATIENT MOTION.
Previous CT Scan of the patient was unavailable.
There is seen an approximately 2.2 x 2.0 x 1.2 cms sized well-defined, hyperintense lesion on the T2 Weighted images in the cerebellar vermis. This lesion also appears hyperintense on the T1 Weighted images and represents extracellular methemoglobin, suggesting a subacute haemorrhage. There is no significant perilesional edema.
There is mild fullness of both the lateral and third ventricles. The fourth ventricle is normal. There is slight prominence of the cerebral cortical sulci bilaterally.
The basal cisternal spaces are unremarkable. There is no shift of the midline structures.
INTRACRANIAL MRA :
There is hypoplasia of the intracranial segment of the left vertebral artery and the A1 segment of the right anterior cerebral artery.
The petrous, cavernous and supraclinoid segments of the internal carotid arteries bilaterally show normal signal and calibre. The visualized left anterior cerebral, middle cerebral, basilar, right vertebral and posterior cerebral arteries also show normal signal, calibre and wall margins. No obvious aneurysm or vascular malformation is identified.
NECK MRA :
The left vertebral artery in the neck also appears hypoplastic.
The common carotid arteries and their extracranial branches appear normal bilaterally. There are no vessel wall irregularities or stenosis of the vessels noted.
An approximately 2.2 x 2.0 x 1.2 cms sized well-defined, lesion in the cerebellar vermis as described represents extracellular methemoglobin, suggesting a subacute haemorrhage.
No significant abnormality is detected on the intracranial and neck MRA on this study.