- Often seen in pregnancy
- Corpus luteum develops from follicular cyst
- Corpus luteum considered cyst when >2.5 cm
- Asymptomatic in many cases
- Acute Pelvic Pain occurs in Hemorrhagic Ovarian Cyst
- Size: 3 to 11 cm
- Variable appearance on Ultrasound
- Commonly thin-walled unilocular cyst
- Color doppler shows circumferential vascularity