Axial T2W images are normal.
MIP images from an MR angiogram reveal a large artery connecting the left cavernous
carotid with the basilar artery.
Source images from the MR angiogram show a large vascular structure in the left
prepontine cistern. A conventional angiogram confirms filling of the basilar artery
from a branch off the left cavernous carotid.
Key words: mri mra angiography vascular congenital developmental
Persistent trigeminal artery