Placenta succenturiata?

Brooke

I had my 20 week scan yesterday and they said everything looked great with baby but I have “a little extra placenta” in the visit summary note they referred to it as placenta succenturiata. Has anyone else had this or know what causes it? When I looked it up it looked like a complication of <a href="https://glowing.com/glow-fertility-program">IVF</a> or prior c section but I’ve had neither