Circumvallente placenta?

Kristen

I had my 20 week ultrasound earlier this week but got a phone call from my midwife today saying the placenta was circumvallente. She said it can cause growth restriction and I would need monitoring at 32 weeks for growth. She is sending me to a specialist though for them to check it out. Anyone else have this or had it with another pregnancy? Google did not help me feel better...