title: [Role of computerized tomography in the diagnosis of transitional cell carcinoma of the upper urinary tract].
abstract: OBJECTIVE
  To evaluate the computed tomography (CT) semiological criteria used in the diagnosis of transitional cell carcinoma of the upper urinary tract.
  
  
  METHODS
  26 patients with transitional cell carcinoma of the upper urinary tract underwent preoperative CT. In all cases nephroureterectomy was performed and CT and histopathologic findings were compared.
  
  
  RESULTS
  16 tumors were infiltrative and 10 tumors were sessile. The smallest tumour had 7 mm diameter and the largest one 13 cm. Associated focal hydronephrosis appeared in 11 cases and diffuse hydronephrosis in 7 cases. The vast majority of these tumors (69.23%) had a 21 to 50 Hounsfield Units enhancement.
  
  
  CONCLUSIONS
  CT is a powerful tool to diagnose transitional cell carcinoma of the upper urinary tract when data acquired in intravenous urography and echography are equivocal.
authors.affiliation: Disciplina Radiologie-Imagistică Medicală, Facultatea de Medicină, Universitatea de Medicină şi Farmacie Gr.T. Popa Iaşi.
authors.forename: D
authors.initials: D
authors.lastname: Negru
authors.forename: Dana Cici
authors.initials: DC
authors.lastname: Ghiorghiu
authors.forename: R
authors.initials: R
authors.lastname: Reuţ
authors.forename: Irina
authors.initials: I
authors.lastname: Negru
authors.forename: C
authors.initials: C
authors.lastname: Pricop
authors.forename: C
authors.initials: C
authors.lastname: Novac
authors.forename: C
authors.initials: C
authors.lastname: Daniil
mesh_terms: D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery