Squamous cell carcinoma of ureter extending into renal vein Positive immunohistochemical staining for carcinoembryonic Antigen

Abstract A case of squamous cell carcinoma of the ureter with extension into the renal vein is presented. Immunoperoxidase method revealed positive staining for carcinoembryonic antigen. The literature on ureteral tumors is reviewed with special reference to renal vein involvement and carcinoembryonic antigen.