Presentation
Palpable abdominal mass
Patient Data
![](https://prod-images-static.radiopaedia.org/images/7197801/980185aee3a70a264e75101bbe1c49_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7195463/e6803e6a411dd50a579bcc54282fc7_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7196321/af5ea05bf67dfca06af40cadc094cc_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7197029/d46446f4e2401def24383f4a068b6c_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7198403/17983484177e2049bba416009644fc_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/7197801/980185aee3a70a264e75101bbe1c49_big_gallery.jpg)
CT of the patient shows a multi-loculated cystic mass adjacent to the bladder, with a smooth
contour, and septa. Small calcifications. The lession shows homogeneous CT attenuation and no endocystic or exocystic vegetation.
Case Discussion
On the basis of this CT the distinction between a serous and mucinous ovarian tumor cannot be made but some features can aid in differentiating mucinous from serous tumors: like a unilocular or multilocular cystic mass with homogeneous CT attenuation , with a thin regular wall or septum, and usually no endocystic or exocystic vegetation is considered to be a serous cystadenoma.