Polyp type | Total | FEP | Reactive | p-value |
|---|
CT follow-up | 35 | 14 | 21 | |
Hydronephrosis | 12 | 3 | 9 | 0.282 |
Mild | 7 | 2 | 5 | 0.676 |
Moderate to severe | 5 | 1 | 4 | 0.627 |
URS follow-up | 20 | 9 | 11 | |
Persistent polyp | 6 | 6† | 0 | 0.002 |
Stricture | 5 | 1‡ | 4 | 0.319 |
- All cases with moderate to hydronephrosis showed obvious stricture under the vision of URS.
- †: All polyps disappeared in three cases of FEP group where all the polyps had been removed during previous URSs. In the other six cases of FEP group, a part of one to two polyps was biopsied and most of the polyps had been preserved
- ‡: In a case with stricture in FEP group, more than five polyps had been removed using Holmium:Yag laser during previous URS.
- p-values were measured using Fisher exact test
- FEP: fibroepithelial polyp, CT: computed tomography, URS: ureteroscopy,
