title: Mesoblastic nephroma in crossed renal ectopia.
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D007668:Kidney / Q000002:abnormalities* / Q000473:pathology; D007680:Kidney Neoplasms / Q000150:complications* / Q000151:congenital / Q000473:pathology; D008297:Male; D014513:Ureter / Q000002:abnormalities; D009396:Wilms Tumor / Q000150:complications* / Q000151:congenital / Q000473:pathology