Vertebral artery occlusion mediated cerebellar and spinal cord infarction: A case report

This is the first reported case combining acute cerebellar (PICA territory) and cervical spinal cord (C2-C4) infarction, with digital subtraction angiography visualization of collateral circulation via the deep cervical artery. It underscores vertebral artery occlusion as a rare yet critical cause of dual cerebellar-spinal infarction, mediated by hemodynamic compromise in both PICA and anterior spinal artery territories.