title: Invasion of the gonadal vein in renal cell carcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging; D000792:Angiography; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000000981:diagnostic imaging; D013737:Testis / Q000098:blood supply*; D014680:Veins