Fig. 1From: Retrograde intrarenal surgery for impacted upper ureteral stone in a patient with advanced lumbar scoliosis and lower-extremity development defect: a case report1 Severe scoliosis with right-facing opening. 2 Impacted stone at the upper of the left ureter (indicated by arrow). 3 Antegrade ureterorenography. 4 Nephrostomy tract (indicated by arrow)Back to article page