title: Malposition of the colon in left renal agenesis and ectopia.
abstract: The anatomic splenic flexure of the colon occupies the renal fossa in patients with left renal agenesis or ectopia and presents a characteristic appearance on radiographs and contrast enema studies. If excretory urography fails to reveal the left kidney, demonstration of the normal colon will exclude renal agenesis or ectopia. The colon remains in normal position in patients with left renal dysplasia or after left nephrectomy.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003106:Colon / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D011859:Radiography