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Arteriovenous malformations. Locations and evolution in the fetal brain.
Author(s) -
Comstock C H,
Kirk J S
Publication year - 1991
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1991.10.7.361
Subject(s) - medicine , arteriovenous malformation , fetus , lesion , vein , anatomy , intracranial arteriovenous malformations , third ventricle , cerebral ventricle , ventricle , radiology , pathology , cerebral angiography , surgery , cardiology , pregnancy , angiography , biology , genetics
Almost all cerebral arteriovenous malformations in the fetus involve the vein of Galen, although occasionally they may involve the frontal area of the brain instead. In all reported cases arteriovenous malformations have presented some time after 30 weeks as a sonolucent oval lesion located in the midline behind the third ventricle. Previous scans have been normal. Evidence of high output failure such as cardiomegaly, enlarged neck veins, or hydrops predicts a poor outcome.