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Vol. 35. Issue 6.
Pages 368-371 (June 2011)
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Vol. 35. Issue 6.
Pages 368-371 (June 2011)
Casuistry
Collecting duct renal cell carcinoma
Carcinoma de células renales del túbulo colector
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1624
A. Husillos
Corresponding author
adrhusillos@hotmail.com

Corresponding author.
, F. Herranz-Amo, D. Subirá, E. Lledó, R. Molina-Escudero, C. Hernández-Fernández
Servicio de Urología, Hospital General Universitario Gregorio Marañón, Madrid, Spain
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Table 1. Clinicopathologic features of patients with collecting duct renal cell carcinoma.
Abstract
Introduction

Bellini's renal cell collecting duct carcinoma is a rarely prevalent renal tumor, with low cancer-specific survival, although its rate of response to antiangiogenic therapies is unknown.

Objectives

We retrospectively revise a series of collecting duct tumors, with special emphasis on the indication of target therapies and on their results.

Materials and methods

Retrospective analysis of renal cell collecting duct carcinoma treated at our institution from January 2000 to June 2010, taking into account the patient's age, sex, reason for the consultation, oncological background, side of the affection, surgical treatment, other anatomopathological characteristics, tumor size, TNM clinical staging (2009), adjuvant treatment and survival time.

Results

Six patients are described, five men and one woman, with a mean age of 75 (±7.7) years. Four of them (66.6%) presented disseminated disease upon diagnosis. Five (83%) were treated with radical nephrectomy and three (50%) received systemic adjuvant treatment, without response. The means survival was 5.5 months (4.75–14.75). Only 2 patients (33.3%), both with localized disease upon diagnosis, are in complete remission.

Conclusion

Renal cell collecting duct carcinoma is a disease with a bad prognosis, little survival and bad response to target therapies.

Keywords:
Kidney
Tumor
Collecting duct
Bellini
Resumen
Introducción

El carcinoma renal de los conductos colectores de Bellini es un tumor renal escasamente prevalente, con baja supervivencia cáncer-específica, aunque realmente se desconoce su tasa de respuesta a terapias antiangiogénicas.

Objetivos

Se revisa de manera retrospectiva una serie de tumores de túbulo colector con especial énfasis en la indicación de terapias diana y en los resultados de la misma.

Material y métodos

Análisis retrospectivo del carcinoma renal de túbulo colector tratados en nuestra institución desde enero 2000 a junio 2010, teniendo en cuenta la edad del paciente, el sexo, el motivo de consulta, los antecedentes oncológicos, el lado de afectación, el tratamiento quirúrgico, otras características anatomopatológicas, el tamaño tumoral, la estadificación TNM (2009), el tratamiento adyuvante y el tiempo de supervivencia.

Resultados

Se describen 6 pacientes, 5 varones y una mujer; con una media de edad de 75 (± 7,7) años. Cuatro de ellos (66,6%) presentaban enfermedad diseminada al diagnóstico. Cinco (83,3%) fueron tratados mediante nefrectomía radical y tres (50%) recibieron tratamiento sistémico adyuvante, sin respuesta. La mediana de supervivencia fue 5,5 meses (4,75-14,75). Sólo dos pacientes (33,3%), ambos con enfermedad localizada al diagnóstico, se encuentran en remisión completa.

Conclusión

El carcinoma renal de túbulo colector es una enfermedad con mal pronóstico, escasa supervivencia y mala respuesta a terapias diana.

Palabras clave:
Riñón
Tumor
Conductos colectores
Bellini

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