title: Editorial comment.
authors.forename: Bobby
authors.initials: B
authors.lastname: Shayegan
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000556:secondary* / Q000601:surgery*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology* / Q000601:surgery*; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis / Q000473:pathology; D009361:Neoplasm Invasiveness; D009392:Nephrectomy; D014513:Ureter / Q000601:surgery*; D014516:Ureteral Neoplasms / Q000473:pathology* / Q000601:surgery*