[Computed tomography evaluation of urothelial carcinomas of the upper urinary tract]. / Valutazione con Tomografia Computerizzata dei carcinomi uroteliali delle vie escretrici urinarie superiori.
Radiol Med
; 86(4): 489-95, 1993 Oct.
Article
em It
| MEDLINE
| ID: mdl-8248587
ABSTRACT
Computed Tomography (CT) is an indispensable noninvasive method for staging transitional cell carcinomas of renal pelvis and ureter. Twenty-seven patients with upper urinary tract tumors were examined and the CT results correlated with histopathologic findings. These tumors exhibit three different development patterns in our series we identified 17 intraluminal sessile lesions, 6 focal or concentric wall thickenings and finally 7 infiltrating masses; soft-tissue density lesions exhibited in all cases mild contrast enhancement (mean density increase 38 HU). Even though the attenuation values of tumors do not allow the accurate demonstration of the depth of renal pelvis and ureteral wall invasion, CT can differentiate the lesions which are still confined within the external wall layers (CT1, 17 cases) from those invading the peripelvic-ureteral fat (CT2, 9 cases) or spreading to other organs as well as distant metastases (CT3, 4 cases). Delayed scans can also demonstrate intraluminal lesion extent and sometimes changes of patients' position allow better differentiation of wall outlines from peripheral fat. The overall staging accuracy of CT was 76.66% and its sensitivity was 93.33%. The assessment of lymph node metastases was the major cause of error in the CT evaluation of these tumors.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Ureterais
/
Carcinoma de Células de Transição
/
Tomografia Computadorizada por Raios X
/
Neoplasias Renais
/
Pelve Renal
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
It
Revista:
Radiol Med
Ano de publicação:
1993
Tipo de documento:
Article