Disruption of the pelvi-ureteric junction due to alcalculous of the renal pelvis

This is a report of a patient who had a calculus escaped from the renal pelvis following a blunt abdominal trauma which caused rupture of the pelviureteric junction. Haematuria was the only reliable symptom of the injury. Intravenous Urography and ultrasound examination were helpful not only in the diagnosis of the injury, but also in confirming the extrusion of the stone. Early diagnosis and surgical repair gave excellent results