Basilar arterio-venous pseudoparallelism due to persistence of embryonal venous pattern.
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.
de Caro
R
R
Institute of Human Anatomy, University of Padova, Italy.
Parenti
A
A
Capitanio
G
G
Ori
C
C
Bracco
F
F
Ricchieri
G L
GL
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