Fig. 7.

Non-neoplastic lesion presenting as a multilocular cystic mass. a Hyperreactio luminalis in a woman in her 30 s at 14 weeks of pregnancy. The right ovary is enlarged and a multilocular cystic mass can be seen on T2WI. Each loculus appears to be an overly-enlarged normal follicle. b, c Peritoneal inclusion cyst after uterine myomectomy in a woman in her 40 s. A cystic mass with septa can be seen along the right pelvic wall on FS-T2WI (b). The bilateral ovaries are inside the cystic lesion on FS-T2WI. The periphery of the cystic lesion is in line with the peritoneum (c)