Inverted Papilloma
Clinical
- Frequent concurrent or prior urothelial carcinoma
- Considered by some to be a risk factor for development of carcinoma
- If no prior history of urothelial neoplasia, recurrence is very rare and progression is not reported
- Most cases in men (7:1 M:F)
- May appear sessile or pedunculated on cystoscopy with smooth surface
- Most common in bladder but may occur anywhere in urinary tract
