title: Sonographic demonstration of renal tumour extension into the contralateral renal vein.
authors.affiliation: Department of Radiology, Hammersmith Hospital, London.
authors.forename: P
authors.initials: P
authors.lastname: Carvalho
mesh_terms: D002292:Carcinoma, Renal Cell / Q000473:pathology*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D012082:Renal Veins / Q000473:pathology*; D014463:Ultrasonography