![](https://prod-images-static.radiopaedia.org/images/469/6f21e4bfb42b5b25001c134fd5ffdd_big_gallery.jpeg)
Toy jacks with a similar appearance to bladder calculi. The balls refer to the rounded shape of the stones and the jacks refer to the spiculated bladder stones (Jackstone calculus). Photo credit: Bovlb. See case discussion for full attribution.
Case Discussion
Attribution
Original image: https://commons.wikimedia.org/wiki/File:Jacks.jpg
Author: Bovlb
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