Sinus pericranii is an anomalous extracranial vascular malformation th
at is in continuity with the intracranial dural venous sinuses. Five c
ase reports, three congenital and two traumatic, are described. Clinic
al management, including evaluation, diagnosis, and treatment, is disc
ussed. Awareness of this entity by plastic surgeons will allow for ear
lier diagnosis and appropriate surgical management, resulting in decre
ased risk of complications.