Presentation
Hematuria.
Patient Data
Age: 75 years
Gender: Male
From the case:
Bladder calculi
![](https://prod-images-static.radiopaedia.org/images/54243322/IMG-0015-00037_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/54243413/IMG-0018-00022_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/54243376/IMG-0001-00022_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/54243388/IMG-0017-00005_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
Download
Info
![](https://prod-images-static.radiopaedia.org/images/54243322/IMG-0015-00037_big_gallery.jpeg)
Numerous calculi of various size (from 8 to 23 mm) are noted within the urinary bladder with a mean density at 560 HU.
Normal appearance of both kidneys with no renal or ureteric stone seen.
Enlarged prostate (weight = 55 g).
Case Discussion
CT features of bladder calculi.
Bladder calculi occur either from migrated renal calculi or urinary stasis. Bladder calculi can be divided into primary and secondary stones:
- Primary: stones formed in sterile urine, usually renal calculi which have migrated down into the bladder
- Secondary: stones form de novo in the bladder or from concretions on foreign material (e.g. urinary catheters)