Presentation
Pelvic pain and palpable mass on physical exam.
Patient Data
![](https://prod-images-static.radiopaedia.org/images/55676973/110237_thumb.jpeg)
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![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/55676868/110047_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/55677181/110069_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/55676973/110237_big_gallery.jpeg)
A 195 x 110 x 130 mm multiloculated cystic lesion without enhancing solid component is present at left adnexa, seeming to originate from the left ovary.
A small amount free fluid is observed at posterior cul-de-sac.
The uterus contains a few small fibroids.
The gallbladder is not seen at anatomical location due to prior resection.
Case Discussion
Left adnexal cystic lesion - pathology-proven ovarian serous cystadenoma which is a type of benign ovarian epithelial tumor at the benign end of the spectrum of ovarian serous tumors.
On CT, ovarian serous cystadenoma is often seen as a unilocular (typically) or multilocular cystic mass with homogeneous attenuation, with a thin regular wall or septum and usually no solid component or mural node.