Presentation
Right lower quadrant pain with a complex right adnexal mass on ultrasound.
Patient Data
Right ovarian unilocular cystic mass of high signal on T1WI/T2WI with a dependent low signal T2WI (intralesional hemorrhage), containing papillary projections. The projections are of intermediate signal on T1WI/T2WI with moderate enhancement and restricted diffusion on DWI/ADC.
The left ovary is normal in appearance.
Mild peritoneal effusion in the pouch of Douglas.
Case Discussion
MRI features of a right ovarian mass with a hemorrhagic cystic component and solid papillary projections which show restricted diffusion, probably representing a serous cystadenocarcinoma.