•Potentially life threatening complication of ovulationinduction or stimulation
•Occurs during luteal phase of menstrual cycle or earlypregnancy
•Imaging hallmark: bilaterally symmetric enlarged ovariescontaining cysts in presence of ascites
•Shift of fluid acutely out of intravascular space resultingin ascites and hemoconcentration
–Most severe: hypercoaguable, renal and hepatic dysfunction,thromboembolic events, ARDS