Gynaecology & Obstetrics Accurate diagnosis of anencephaly on ultrasound can be done at: September 2005 A 5 weeks of gestation B 8 weeks of gestation C 10 weeks of gestation D 14 weeks of gestation 💡 Explanation Accurate diagnosis of anencephaly on ultrasound can be done at: September 2005 ✓ Correct Answer: C. 10 weeks of gestation