Csp brain scan cavum septi pellucidi (CSP)

Alyce
Hi, I'm 20 weeks pregnant and my doc said that the baby is missing part of its csp in its brain it's not fully developed! Has anyone come across this before and their baby turn out fine or have had major disabilities? cavum septi pellucidi (CSP) I'm worried that it won't fully develop and my child will suffer when born!