Date : 00.00.00
Name of the Patient : Abc Xyz Borlmn / M / 17 yrs.
Referred by : Dr. Abc Xyzah.
Examination : Intracranial and Neck M.R.A.
CLINICAL PROFILE :
C/O giddiness with blackouts (momentary) since 1 year.
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.
There is no focal area of altered signal intensity within the brain parenchyma.
Both the lateral, third and the fourth ventricles are normal. The basal cisternal spaces are unremarkable. There is no shift of the midline structures.
The clivus appears horizontal. The atlanto dens interval measures 6.0 mms.
Occipital synchondrosis is noted.
INTRACRANIAL MRA :
There is hypoplasia of the P1 segment of the right posterior cerebral artery.
The right vertebral artery is hypoplastic.
The petrous, cavernous and supraclinoid segments of the internal carotid arteries bilaterally show normal signal and calibre. The visualized anterior cerebral, middle cerebral, basilar and left vertebral arteries also show normal signal, calibre and wall margins. No obvious aneurysm or vascular malformation is identified.
NECK MRA :
The right 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.
1. Horizontal clivus with the atlanto dens interval measursing 6.0 mms.
2. Occipital synchondrosis.
3. Hypoplastic right vertebral artery.