MRI
Axial T2
Axial T1
Coronal T2
Sagittal T1 C+
MRA
Aneurysm of right PICA region with hyperintense signal on T1, low peripheral signal and central hyperintense signal on T2 and no postcontrast enhancement suggestive of thrombosis. It is compressing the right side of medulla oblongata.
Dolichoectasia of basilar artery.