Ok, I just got my ultrasound report in the mail on Saturday. My dr. had called me to tell me my due date, but on the report it says I have a thick-walled cystic structure in the left ovary. Then down farther on the reprort it says, Likely Left Corpus Luteum. Any thoughts? Has anyone ever had an ovarian cyst? My dr. didn't ever mention it when he called me, but then again I had a crying baby at the time too.