title: Basilar arterio-venous pseudoparallelism due to persistence of embryonal venous pattern.
abstract: A vascular malformation, consisting of a venous vessel bridgeing the right inferior petrosal sinus and the anterior spinal veins, was found in the posterior fossa. The vessel presented a ring-like course around the right trigeminal root, and it was parallel and dorsal to the basilar artery. The malformation was associated with cutaneous and hepatic angiomas and peri-osteal lipomas. It had been clinically silent for 52 years, when it thrombosed causing death. The authors think that, within a general mesenchymopatic state, this is a result of the persistence of an embryonal cerebral venous pattern.
authors.affiliation: Institute of Human Anatomy, University of Padova, Italy.
authors.forename: R
authors.initials: R
authors.lastname: de Caro
authors.forename: A
authors.initials: A
authors.lastname: Parenti
authors.forename: G
authors.initials: G
authors.lastname: Capitanio
authors.forename: C
authors.initials: C
authors.lastname: Ori
authors.forename: F
authors.initials: F
authors.lastname: Bracco
authors.forename: G L
authors.initials: GL
authors.lastname: Ricchieri
mesh_terms: D001344:Autopsy; D001488:Basilar Artery / Q000002:abnormalities* / Q000473:pathology; D002550:Cerebral Veins / Q000002:abnormalities* / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D010547:Persistent Fetal Circulation Syndrome / Q000175:diagnosis* / Q000473:pathology; D013927:Thrombosis / Q000209:etiology / Q000473:pathology