title: Refluxing ureteroceles.
abstract: We report 4 cases of 3 different forms of ureteroceles to illustrate spontaneous reflux without any evidence of obstruction. The presence of reflux tends to support those concepts that ureterocele formation is not on an obstructive basis. The obstruction that is oftern associated with ureteroceles is probably caused by the same stimulus as that which created the ureterocele. Obstruction does not necessarily accompany every ureterocele and is not causative of its formation.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography; D014518:Ureterocele / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014718:Vesico-Ureteral Reflux / Q000000981:diagnostic imaging* / Q000503:physiopathology