title: [Pathological prognostic factors of renal pelvic and ureteral cancer].
abstract: OBJECTIVE
  To determine the pathologic risk factors after nephroureterectomy in patients with urothelial carcinoma of the renal pelvis and ureter.
  
  
  METHODS
  We investigated the clinicopathological features of 131 patients (94 males and 37 females) with urothelial carcinoma of the renal pelvis and ureter who underwent nephroureterectomy at our department and related facilities from August, 1994 to August, 1997. The mean age of the patients was 68 years, ranging from 24 to 86 years.
  
  
  RESULTS
  The 1-, 3- and 5-year cause-specific survival rates (Kaplan-Meier's method) for all of the patients were 91.8%, 76.7%, and 67.8%, respectively. The significant prognostic factors for survival rates by univariate analysis using the log rank test were tumor stage, infiltration pattern, lymphatic invasion, vessel invasion and lymph node metastasis. On the other hand, multivariate analysis using Cox proportional hazards regression model showed the most influential prognostic factors to be vessel invasion and tumor stage.
  
  
  CONCLUSIONS
  From these results, in urothelial carcinoma of the renal pelvis and ureter underwent nephroureterectomy, we suggested that vessel invasion and tumor stage were the independent prognostic factors.
authors.affiliation: Division of Urology, Department of Organs Therapeutics, Kobe University Graduate School of Medicine.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kumano
authors.forename: Jyunya
authors.initials: J
authors.lastname: Furukawa
authors.forename: Kazuki
authors.initials: K
authors.lastname: Yamanaka
authors.forename: Kazushi
authors.initials: K
authors.lastname: Tanaka
authors.forename: Yuji
authors.initials: Y
authors.lastname: Yamada
authors.forename: Isao
authors.initials: I
authors.lastname: Hara
authors.forename: Masato
authors.initials: M
authors.lastname: Fujisawa
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002295:Carcinoma, Transitional Cell / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D007682:Kidney Pelvis; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009392:Nephrectomy; D011379:Prognosis; D012307:Risk Factors; D015996:Survival Rate; D014513:Ureter / Q000601:surgery; D014516:Ureteral Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery