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Vol. 27. Issue 1.
Pages 22-25 (January 2003)
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Vol. 27. Issue 1.
Pages 22-25 (January 2003)
Análisis epidemiológico del carcinoma renal de células claras y cromofílico
“epidemiologic analysis of the clear-cell and chromophilic renal carcinoma ”
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J.M. Gómez de Vicentea,1, L. Llanes Gonzáleza, D. Santos Arrontesa, V. Chiva Roblesa, I. Romero Cagigala, E. Redondo Gonzáleza, A. Berenguer Sáncheza
a Servicio de Urología. Hospital Universitario de Getafe. Madrid
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Resumen
Objetivo

Encontrar diferencias en las características epidemiológicas de las dos variedades más frecuentes de cánceres renales: el carcinoma renal de células claras y el cromofílico (papilar).

Material Y Métodos

Análisis retrospectivo de las características epidemiológicas de los pacientes diagnosticados de carcinoma renal en nuestro hospital entre los años 1991 y 2001. Se buscaron diferencias estadísticamente significativas entre las características de los pacientes (edad, sexo y hábito tabáquico) y de los tumores (tamaño, focalidad, estadio, lateralidad y grado).

Resultados

Se diagnosticaron 66 tumores renales, de los cuales 41 (62,1%) eran de células claras y 9 (13%) cromofílicos. Únicamente se encontraron diferencias estadísticamente significativas entre ambas subpoblaciones en lo referente al tamaño (p<0,05), siendo mayor en el caso de los de células claras (7 ± 3,92 cm) frente a los cromofílicos (4,89 ± 1,96 cm). También se apreció una sensible tendencia de los tumores cromofílicos a encontrarse en estadios más precoces en el momento del diagnóstico.

Conclusiones

Los carcinomas renales de células claras y los cromofílicos son las dos variedades más frecuentes de tumores renales. Los cromofílicos son de menor tamaño y suelen encontrarse en un estadio menos avanzado, aunque esta tendencia no se ha podido demostrar en nuestra serie.

Palabras Clave:
Cáncer renal
Epidemiología
Abstract
Objective

Finding differences in the characteristics of the two most frequent variants of renal cancers: the clear-cell renal carcinoma, and the chromophilic one.

Material and methods

Restrospective analysis of epidemilogical characteristics of patients diagnosed of renal carcinoma in our hospital between 1991 and 2001. Statistical differences were searched between patients´ characteristics (age, sex, smoking habitus) and tumors´ characteristics (size, focality, stage, side and grade).

Results

Sixty six renal tumors were diagnosed, of which 41 (62.1%) were clear-cell tumors and 9 (13%) were chromophilic. We only found statistical differences between both subpopulations´ tumor size (p<0,05), being greater for clear-cell tumors (7 ± 3,92 cm) than for chromophilic ones (4,89 ± 1,96 cm). We could also appreciate a bias towards a less advanced stage of the chromophilic type, although not statistically significant.

Conclusions

Clear-cell renal carcinoma and chromophilic renal carcinoma are the two more frequent variants of renal tumors. The chromophilic type is smaller and is usually found in a less advanced stage, although this bias could not be demonstrated in our series.

Key Words:
Renal neoplasms
Epidemiology

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