[Chronic limping due to calcification in a subureteric Macroplastique(®) implant]

Endoscopic subureteric implantation of polydimethylsiloxane (Macroplastique(®)) to treat vesico-ureteric reflux is known to be safe and efficient, but long-term complications of this technique are often unknown. A 15-year-old patient was admitted to several hospital services with abdominal pain in the right lower quadrant and chronic limping. After multiple examinations, the diagnosis of renal colic due to the calcification of a Macroplastique(®) implant was made. Calcification of an implant after endoscopic subureteral injection has already been described in the literature, but the clinical presentation of this complication is poorly reported, which can delay the diagnosis. The treatment can consist in an exeresis of the implanted material or even in ureteral reimplantation.