This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Advanced Fetal Ultrasonography and Therapy, Subject name: Radiology
Earliest detectable congenital malformation by USG is? 
Select and explain. 
A. Spina bifida, B. Cystic hygroma, C. Anencephaly, D. Encephalocele
C: Anencephaly
Answer: C: Anencephaly 
Explanation: Ans. is 'c' i.e. AnencephalyWe could not get any adequate reference but there's no doubt about the answer. If anyone has adequate reference, please mail us at reviewofaiimspgmee.com.