Cerebral arteriovenous malformations associated with a straight sinus anomaly.
Nine cerebral arteriovenous malformations (AVM) associated with straight sinus anomaly were demonstrated on angiograms. All 10 AVM (1 patient had two AVM) occupied deep cerebral structures: Seven were totally or partially located in the basal ganglia or the corpus callosum, and 3 were in the medial occipital or temporal lobe. In 6 patients, almost no filling of the straight sinus was observed, although the AVM were located deeply and the main drainage was via the vein of Galen. All 6 patients showed retrograde flow in the deep cerebral veins or venous drainage through a persistent facial sinus. The other 3 patients had duplication or septal formation of the straight sinus. Straight sinus anomaly is extremely rare in the normal population but seems not uncommon in patients with deep-seated AVM.
Minakawa
T
T
Department of Neurosurgery, Brain Research Institute, Niigata University, Japan.
Tanaka
R
R
Koike
T
T
Takeuchi
S
S
Abe
H
H
D000293:Adolescent; D000328:Adult; D002533:Cerebral Angiography; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D003392:Cranial Sinuses / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D007223:Infant; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged