Presentation
Right pelvic pain.
Patient Data
Large well-defined rounded solid-cystic mass arising from the right ovary with peripheral displacemeent of the ovarian follicles. The cystic component is of intermediate signal on T1 and high signal on T2 with no restricted diffusion or enhancement on postcontrast sequences. The solid component appears as endocystic vegetations of peripheral location, eliciting an intermediate to low signal on T1, and a low signal on T2 with restricted diffusion and enhancement on postcontrast sequences.
Normal appearance of the uterus and left ovary
Minimal fluid in Douglas's pouch.
No pelvic lymphadenopathy.
Case Discussion
MRI features of a mixed solid-cystic ovarian mass.
The patient went on to have a surgical resection of the tumor and ovary. The histological report was compatible with an ovarian borderline mucinous cystadenoma.
Ovarian borderline mucinous cystadenomas are non-invasive tumors of low malignant potential between mucinous cystadenomas and mucinous cystadenocarcinomas. They account for ~ 10-15% of all ovarian mucinous tumors.
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