Cross-sectional imaging of acute gynaecologic disorders: CT and MRI findings with differential diagnosis—part II: uterine emergencies and pelvic inflammatory disease

Table 1 CT findings of pelvic inflammatory disease (PID)

Tubo-ovarian disease	Morphology	CT	Contrast-enhanced CT
Hydrosalpinx	Fluid-filled thin-walled tubular structure	Tubal dilatation with fluid attenuation	No enhancement
Haematosalpinx	Dilated fallopian tube filled with blood products	Increased attenuation due to haemorrhagic content	Slight wall enhancement
Acute salpingitis	Swollen fallopian tube with intramural inflammation	Hypoattenuating fluid distension	Wall thickening and enhancement
Pyosalpinx	Bilateral, serpiginous or tubular structure with purulent content and possible fluid-debris levels	Fluid-debris levels, perivisceral fat stranding	Wall enhancement
Tubo-ovarian abscess	Loss of the normal adnexal structure, formation of a solid-cystic pus-filled inflammatory mass	Multilocular solid-cystic mass, low attenuation, perivisceral fat stranding	Wall and septal enhancement