The development of an ovarian mass is related to the development of<unk> . In the reproductive years, regular growth of large corpus luteal cysts are a risk factor for rotation. The mass effect of ovarian tumors is also a common cause of<unk> .<unk>  of the ovary usually occurs with<unk>  of the fallopian tube as well on their shared vascular pedicle around the broad ligament, although in rare cases the ovary rotates around the mesovarium or the fallopian tube rotates around the mesosalpinx. In 80%,<unk>  happens unilaterally, with slight predominance on the right. In<unk> , the ovary rotates around both the infundibulopelvic ligament (ie, suspensory ligament) and the utero-ovarian ligament (i.e. ovarian ligament), disrupting blood flow to the ovary.
Ovarian torsion
Appendicitis
Testicular torsion
Ectopic pregnancy
Ovarian vein syndrome
Kidney stone disease
Tubo-ovarian abscess
Pyelonephritis