Question 2166

Question contributed by Pir Abdul Ahad Aziz Qureshi ◉

Disclosures and question data

Regarding absent cavum septi pellucidi, all of the following are correct EXCEPT...

boxing/squaring off of the frontal horns can be seen

echogenic line passing through the anechoic area in the midline near the frontal horns represents cavum septi pellucidi

it can be due to developmental and acquired causes

it is always visualised between 18 and 37 weeks of gestation

it is partly or entirely absent in 2-3 individuals per 100,000 in the general population