title: Renal cell carcinoma: an unusual sonographic appearance.
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007668:Kidney / Q000473:pathology; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D014463:Ultrasonography