This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Radiology
Newborn male baby presented with congestive heart failure. On examination enlarged fontanelles, a loud cranial bruit and following radiological finding was noted -the most likely diagnosis is: 
Select and explain. 
A. Sinus pericranii, B. Vein of Galen malformation, C. Arachnoid cyst, D. Dandy walker malformation
B: Vein of Galen malformation
Answer: B: Vein of Galen malformation 
Explanation: Ans. B Vein of Galen malformationCongenital malformation of median prosencephalic veinQ which shows dilated midline vascular channel in posterior part of cranium. Commonest cause of high output cardiac failure in paediatric age groupQ.