title: Segmental hydronephrosis with a bifid intrarenal pelvis.
mesh_terms: D002648:Child; D006801:Humans; D006869:Hydronephrosis / Q000151:congenital*; D007682:Kidney Pelvis / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D011704:Pyelonephritis / Q000209:etiology; D011859:Radiography