title: Prevesical Calcification and Hydronephrosis in a Girl Treated for Vesicoureteral Reflux.
abstract: The endoscopic STING procedure using Deflux is a common and minimal invasive treatment for vesicoureteral reflux. Herein we present the case of an 11-year-old girl with loin pain and de novo hydronephrosis and megaureter on the left. Ultrasound and plain abdominal X-ray demonstrated a calcification at the ureterovesical junction. She had been treated with Deflux injections 5 years before. The clinical quiz addresses the differential diagnosis, workup, and pathogenesis of calcifications at the ureterovesical junction following endoscopic reflux therapy.
authors.affiliation: VU University Medical Center, Amsterdam, Netherlands.
authors.forename: Sarah
authors.initials: S
authors.lastname: Kuipers
authors.affiliation: VU University Medical Center, Amsterdam, Netherlands.
authors.forename: Eric H J R
authors.initials: EH
authors.lastname: van der Horst
authors.affiliation: VU University Medical Center, Amsterdam, Netherlands.
authors.forename: Jonathan I M L
authors.initials: JI
authors.lastname: Verbeke
authors.affiliation: VU University Medical Center, Amsterdam, Netherlands.
authors.forename: Arend
authors.initials: A
authors.lastname: Bökenkamp
keywords: Deflux; calcification; endoscopic treatment; kidney stone; vesicoureteral reflux