case_images: PMC4834182_01
case_images: Brain computed tomography scan (CT scan) showing a hyperdense lesion in the brain stem and
  cerebellum
case_images: ARYA-12-055f1.jpg
case_images: PMC4834182_01_ARYA-12-055f1.jpg
case_images: f1-ARYA-12-055
case_images: Brain computed tomography scan (CT scan) showed hyperdense lesion in the brain stem and cerebellum (Figure 1).
case_images: Brain magnetic resonance imaging (MRI),
  with contrast showing dilatation of intracranial
  segment of basilar artery, with extrinsic pressure over
  both sides of medulla
case_images: ARYA-12-055f2.jpg
case_images: PMC4834182_01_ARYA-12-055f2.jpg
case_images: f2-ARYA-12-055
case_images: Moreover, there was a marked compression and a displacement of the left pons and lower mesencephalic by the basilar artery (Figure 2).
case_images: Brain magnetic resonance imaging (MRI)
  sagittal view showing dilatation of intracranial segment
  of basilar artery, with extrinsic pressure over both sides
  of medulla
case_images: ARYA-12-055f3.jpg
case_images: PMC4834182_01_ARYA-12-055f3.jpg
case_images: f3-ARYA-12-055
case_images: 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).
case_images: Magnetic resonance angiography of brain
  showing fusiform dilation of basilar artery and the
  segment of bilateral internal carotid arteries
case_images: ARYA-12-055f4.jpg
case_images: PMC4834182_01_ARYA-12-055f4.jpg
case_images: f4-ARYA-12-055
case_images: 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).