Fig. 12From: Cross-sectional imaging of acute gynaecologic disorders: CT and MRI findings with differential diagnosis—part I: corpus luteum and haemorrhagic ovarian cysts, genital causes of haemoperitoneum and adnexal torsionHaemoperitoneum shown at CT (a–c) as pelvic effusion (asterisk) with attenuation higher than that of water, caused by ruptured corpus luteum seen as a 3-cm right adnexal cystic lesion (arrowheads) with enhancing wall, surrounded by high-attenuation ‘sentinel clot’ (arrows)Back to article page