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Inicio Actas Urológicas Españolas Utilidad de la citología de orina para el diagnóstico del carcinoma vesical: e...
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Vol. 32. Issue 9.
Pages 904-907 (January 2008)
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Vol. 32. Issue 9.
Pages 904-907 (January 2008)
Utilidad de la citología de orina para el diagnóstico del carcinoma vesical: estudio comparativo con biopsia
Usefulness of Urine Cytology for Bladder Carcinoma Diagnosis: Comparative Study with Biopsy
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M.A. García Castro1
Corresponding author
candelarigc@yahoo.es

Correspondencia autor: Dra. MªC. García Castro Sección de Citología Clínica. Hospital Universitario de Canarias Ofra, s/n - 38320 La Laguna (Sta. Cruz de Tenerife) Tel.: 922 679 079
, E. Fernández Fernández, M.C. Martín Corriente, S. García Hernández, H. Álvarez-Argüelles Cabrera
Sección de Citología Clínica. Hospital Universitario de Canarias. Tenerife.
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Resumen
Objetivo

La citología de orina se ha considerado la técnica de elección para el cribado de carcinoma vesical. La existencia de otros métodos diagnósticos adicionales, han puesto en duda su utilidad. Aportamos un estudio comparativo cito-histológico para comprobar su valor.

Método

Hemos realizado un estudio retrospectivo de 109 biopsias vesicales en relación con los diagnósticos citológicos previos. Todas las citologías eran de micción espontánea, procesadas por citocentrifugación y teñidas con Papanicolaou.

Resultados

Encontramos 70 casos verdaderos positivos, y 24 casos verdaderos negativos, consiguiendo una sensibilidad del 97% y una especificidad del 96-100%. Destacando que 12 casos positivos tenían la primera cistoscopia y biopsia negativa, diagnosticándose la neoplasia en la segunda biopsia.

Conclusiones

Los pacientes con citologías de orina claramente positivas, que no se confirman en una primer estudio citoscópico, deben ser seguidos, para identificar una posible neoplasia vesical o de vías urinarias altas. La citología de orina puede seguir considerándose como una técnica de elección para el cribado y control de neoplasia vesical.

Palabras clave:
Citología de orina
Biopsia
Cistoscopia
Carcinoma vesical
Abstract
Objectives

Traditionally, urine cytology has been considered as the gold standard for bladder cancer screening. However, new methods are playing new roles in these cases. In order to assess the value of cytology of voided urine we performed one comparative study between cytology and biopsy.

Methods

We retrospectively analyzed the results of urine cytology and biopsy follow-up in 109 patients. All cytologies were from voided urine. They were cytocentrifuged and stained with Papanicolaou stain.

Results

We found 70 true positive cases and 24 true negative cases. Sensitivity was calculated to be 97% and specifity 96-100%. 12 cases had the first cystoscopy test and biopsy negative, as the cancer was diagnosed in the second biopsy.

Conclusions

Patients with clearly positive urine cytology, which was not confirmed in a first cystoscopic study, should be carefully followed up to identify a possible bladder or upper urinary tract cancer. The urine cytology still has a significant role as the gold standard for bladder cancer screening.

Keywords:
Cytology urine
Biopsy
Cystoscopy
Bladder cancer

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