title: "Cobra head" stone.
authors.affiliation: Department of Pediatrics, Midland Regional Hospital, Mullingar, Ireland.
authors.forename: Aisling M
authors.initials: AM
authors.lastname: Stafford
authors.affiliation: Department of Radiology, Midland Regional Hospital, Mullingar, Ireland.
authors.forename: Hugh
authors.initials: H
authors.lastname: Logan
authors.affiliation: Department of Pediatrics, Midland Regional Hospital, Mullingar, Ireland.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: O'Grady
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D018616:Ultrasonography, Doppler, Duplex; D014514:Ureteral Calculi / Q000150:complications / Q000175:diagnosis*; D014518:Ureterocele / Q000150:complications / Q000175:diagnosis*; D018666:Ureteroscopy; D014567:Urography