Fig. 1From: 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 torsionTypical appearance of an uncomplicated corpus luteum in the second half (luteal phase) of the menstrual cycle on axial (a) and coronal (b) CT images: the normal-sized right ovary (arrowhead) contains a 1.5-cm cystic structure demarcated by a crenulated, strongly enhancing peripheral rim (arrow)Back to article page