title: Mesoblastic nephroma.
mesh_terms: D000293:Adolescent; D000792:Angiography; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis*; D008297:Male; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D009396:Wilms Tumor / Q000175:diagnosis*