The posterior inferior cerebellar artery (PICA) has a unique anatomical complexity, which is of great clinical importance and involved in many pathologies, such as aneurysm, ischemic stroke, neurovascular compression syndrome (NVCS), arteriovenous malformation (AVM) brain tumour (1).
 PICA sinuous variable trajectory, divided into 5 segments. infarction usually manifests lateral bulbar mor...