Collateral Circulation on the Neck after Common Carotid Ligation(Bosniak's Plexus)

The importance of the suboccipital plexus(Bosniak's Plexus) described by Bosniak in 1963, is emphasized. This rich anastomatic network is formed by the deep and ascending cervical arteries and nuchal brances of the vertebral artery. We experienced this Bosniak's plexus after common carotid artery aneurysm.