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Comparison of clinical and pathologic features of idiopathic calcium oxalate (iCaOx), brushite (BR), and gastric bypass (Bypass) stone formers.
| Idiopathic CaOx | Brushite | Gastric Bypass | |
|---|---|---|---|
| Interstitial Apatite | Yes | Yes | No |
| Tubule Apatite | No | Yes | Yes |
| Collecting Duct Cell Injury | No | Yes | Yes |
| Interstitial Fibrosis | 0 | 2++ | 1+ |
| Urinary pH | 6 | 6.5 | 5.5 |
| Stone Type | CaOx | CaOx/Brushite/Apatite | Ca Ox |
| Anchored Stone | Usually | Usually | Uncommon |
