Presentation
Pelvic pain and palpable mass on physical exam.
Patient Data
![](https://prod-images-static.radiopaedia.org/images/57902943/47._thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/57902764/46._thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/57902859/80._thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/57902987/30._thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/57903072/49._thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/57902943/47._big_gallery.jpeg)
A 125×90 mm unilocular cystic lesion without enhancing solid components is noted in the left adnexa. The left ovary couldn’t be defined separately.
A few gas containing stones are noted in the gallbladder.
A 5 mm stone is seen in the lower calyx of the left kidney.
Case Discussion
Left adnexal cystic lesion; pathology proved ovarian serous cystadenoma, a type of benign ovarian epithelial tumor at the benign end of the spectrum of ovarian serous tumors.
On CT images, ovarian serous cystadenoma is often seen as a unilocular (typically) or multilocular cystic mass, with a thin regular wall or septum and no solid enhancing component.