Fig. 1

Pelvic ultrasound A and B showing median and right paramedian pelviabdominal cystic, thin-walled lesion of a pear to ovoid shape with few very thin septa and some hyperechoic material in its dependent part. The lesion shows no calcifications or vascularity internally in its wall. C Sagittal/vertical midline view of the pelvis showing the uterus (++++) and the urinary bladder (red arrow) just anterior to it, and showing part of the cystic lesion (yellow arrow) located anterosuperior to the uterus