Fibroepithelial polyps of ureter

Fibroepithelial Polyp of the Lower Urinary Tract in Adults

“…It has a marked male predominance, as is also seen in fibroepithelial polyps of the ureter. 3,15 More than half of the reported cases occur in neonates or children, some of which are associated with urogenital malformations. 11 However, cases have also been reported from the second to fourth decades.…”

Benign Ureteral Tumors

“…The sex ratio (male/female, 3:2), side preference (twice as frequent on the left side) and the typical localization (60% at the infundibulum of the proximal ureter) of fibroepithelial polyps are still unclear [4,5,9]. Ureteral polyps usually appear as solitary tumors, nevertheless rare cases of multiple and bilateral appearance have been described [2].…”

“…Nonepithelial lesions are of mesodermal origin including fibromas, fibrolipomas, leiomyomas, granulomas, lymphangiomas, neurofibromas, hemangiomas, foci of endometriosis and fibroepithelial tumors, accounting for up to 20% of all benign ureteral tumors [2,[4][5][6][7]. The multifunctional etiology of the fibroepithelial polyps is still unclear.…”

Imaging diagnosis and endoscopic treatment for ureteral fibroepithelial polyp prolapsing into the bladder

“…Primary ureteral tumors account for 1% of upper urinary tract tumors [1]. Ureteral fibroepithelial polyps (UFP) are the most common benign tumor of the ureter.…”

“…Ureteral fibroepithelial polyps (UFP) are the most common benign tumor of the ureter. Although the etiology is not clear, congenital factors and local chronic stimulation have been proposed [1][2][3]. UFP occur more frequently in males between 20 to 40 years old, and the male-female ratio is 3:2 [4].…”