Fig. 12

Tubo-ovarian abscess in a 14-year-old woman. (a) Axial and (b) sagittal T2-weighted images show heterogeneous, multilocular mass, with hypointense internal incomplete plicae and high to intermediate signal intensity fluid content (white arrows) in the pelvic cul-de-sac. (c) On sagittal fat-suppressed T1-weighted images, the mass’ content shows low signal intensity (white arrows). (d) Axial DW image (b = 800 s/mm²) and (e) corresponding ADC map show that the lesion’s content demonstrates restricted diffusion with high signal intensity (white arrow) on DWI image and low signal intensity (white arrow) on ADC map, a finding consistent with a purulent content. (f) The presence of primary ovarian follicles demonstrated the ovarian nature of the lesion (H&E 200X)