title: Multichannel fenestrations of the petrous segment of the internal carotid artery.
abstract: Multichannel fenestration of the internal carotid artery (ICA) is a rare, previously unreported developmental anomaly with unknown clinical significance. Although previously thought to have distinct embryologic origins, the presence of multiple channels in a short-segment fenestration favors a common developmental pathway for the origin of duplications and fenestrations: the persistence of a plexiform vascular network from the 4-mm to 5-mm embryologic stage of development.
mesh_terms: D000368:Aged; D015901:Angiography, Digital Subtraction; D017536:Carotid Artery, Common / Q000000981:diagnostic imaging; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000196:embryology; D019416:Head Movements; D006801:Humans; D008297:Male; D010579:Petrous Bone / Q000098:blood supply*; D018608:Ultrasonography, Doppler; D014711:Vertebral Artery / Q000000981:diagnostic imaging