A neonate presents with features of hea failure. On examination anterior fontanelle was found to be bulging. On auscultation, a cranial bruit was heard. A CT angiography done showed the following: Which vessel is mainly involved in this abnormality?: (A) Median prosencephalic vein, (B) Vein of Galen, (C) Entire circle of willis, (D) Choroid plexus
Answer is A. - History of features of hea failure, bulging anterior fontanelle, cranial bruit & image given suggests the diagnosis of VEIN OF GALEN MALFORMATION - Vessel involved is - Median prosencephalic vein of markowsky (precursor of vein of Galen) - Onset - 11-13 weeks of gestation