Fig. 5

Subacute tubo-ovarian abscess in a 30-year-old woman with subacute pelvic pain (3 weeks ago) and persistent left pelvic pain. a Axial T1-W fat-suppressed MR image shows a T1-hyperintense cystic ovarian lesion (thick arrow), corresponding to proteic and hemorrhagic content. b Sagittal and (c) axial T2-W MR images show an ovarian well-defined cystic cavity with intermediate T2-signal intensity, surrounded by a hypointense peripheral rim (thick arrows). Note the presence of an adjacent hydrosalpinx with heterogeneous signal intensity (thin arrows). Of note, the presence of a homolateral T2-hyperintense functional ovarian cyst (arrowheads). d Axial T1-W fat-suppressed contrast-enhanced MR image shows enhancement of the collapsed walls of the remnant ovarian abscess (thick arrow) as well as the walls of the hydrosalpinx (thin arrows), with obliteration of the fat planes around the left ovary. Of note, the presence of a homolateral functional ovarian cyst showing a peripheral enhancement (arrowheads)