title: Intrarenal mass with roentgenographic well-defined medical border.
mesh_terms: D002675:Child, Preschool; D005188:False Negative Reactions; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D014463:Ultrasonography; D014567:Urography; D009396:Wilms Tumor / Q000175:diagnosis*