PMC4834182_01
Brain computed tomography scan (CT scan) showing a hyperdense lesion in the brain stem and
cerebellum
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Brain computed tomography scan (CT scan) showed hyperdense lesion in the brain stem and cerebellum (Figure 1).
Brain magnetic resonance imaging (MRI),
with contrast showing dilatation of intracranial
segment of basilar artery, with extrinsic pressure over
both sides of medulla
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Moreover, there was a marked compression and a displacement of the left pons and lower mesencephalic by the basilar artery (Figure 2).
Brain magnetic resonance imaging (MRI)
sagittal view showing dilatation of intracranial segment
of basilar artery, with extrinsic pressure over both sides
of medulla
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MRI showed long segment dilatation and severe tortuosity of basilar artery, as well as long segment slight dilated ICA proximal to bifurcation (Figure 3). MR angiography (MRA) of cerebral arteries showed fusiform dilatation of left vertebral artery and proximal two-thirds of basilar artery (dolichoectasia), with similar changes in supraclinoid portion of both internal carotid arteries as well as (Figure 4).
Magnetic resonance angiography of brain
showing fusiform dilation of basilar artery and the
segment of bilateral internal carotid arteries
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MRI showed long segment dilatation and severe tortuosity of basilar artery, as well as long segment slight dilated ICA proximal to bifurcation (Figure 3). MR angiography (MRA) of cerebral arteries showed fusiform dilatation of left vertebral artery and proximal two-thirds of basilar artery (dolichoectasia), with similar changes in supraclinoid portion of both internal carotid arteries as well as (Figure 4).