title: Pyelovenous backflow. Facts, fallacies and significance.
mesh_terms: D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging; D006222:Hamartoma / Q000000981:diagnostic imaging*; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging; D007674:Kidney Diseases / Q000000981:diagnostic imaging*; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D007682:Kidney Pelvis / Q000098:blood supply / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012082:Renal Veins / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014567:Urography