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Inicio Cirugía Española Cáncer bilateral de mama. Revisión de las características clínicas e histolÃ...
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Vol. 70. Núm. 2.
Páginas 65-68 (agosto 2001)
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Vol. 70. Núm. 2.
Páginas 65-68 (agosto 2001)
Acceso a texto completo
Cáncer bilateral de mama. Revisión de las características clínicas e histológicas
Bilateral Breast Cancer. Clinical and Histologic Characteristics
Visitas
7335
P. Rebasaa1, H. Vallverdúa, E. Lermab, M.C. Alonsoc, A. Gómezd, J. Fuentesc, A. Llauradóe, B. Ojedac, M. Tríasa
Servicios de Cirugía General, Anatomía Patológica, Medicina Oncológica y Radiodiagnóstico. Hospital de Sant Pau. Universidad Autónoma. Barcelona.
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Resumen
Introducción

Entre un 5 y un 15% de mujeres con cáncer de mama desarrollarán un cáncer bilateral. Presentamos un estudio descriptivo de las neoplasias bilaterales de mama.

Material y métodos

Revisión retrospectiva de todos los casos de cáncer bilateral tratados entre 1992 y 1997. Descripción de las características de las mujeres y comparación entre neoplasias sincrónicas y metacrónicas.

Resultados

Se han tratado 1.443 mujeres con cáncer de mama, 60 con neoplasia bilateral (4,2%) –neoplasia sincrónica en 39 (65%) y metacrónica en 21 (35%)–. La primera neoplasia se presenta 11 años antes en las de tipo metacrónico. Un 35,9% de las pacientes con neoplasia metacrónica tenían antecedentes familiares de neoplasia de mama (frente a un 19% en las neoplasias sincrónicas). El tiempo entre ambas neoplasias metacrónicas es de 80 meses. No hay diferencias histológicas entre las neoplasias sincrónicas y las metacrónicas; la supervivencia es mejor en las metacrónicas.

Conclusiones

Las mujeres cuyo primer carcinoma se diagnostica a una edad relativamente joven y con antecedentes familiares de cáncer de mama tienen mayor riesgo de desarrollar un segundo carcinoma mamario. Es preciso un seguimiento meticuloso e indefinido para detectar cánceres bilaterales en fase preclínica.

Palabras clave:
Cáncer
Mama
Bilateral
Introduction

The occurrence of bilateral tumors is reported to be between 5 and 15% of women with breast cancer. This is a descriptive study of bilateral cancer of the breast.

Material and methods

Retrospective review of all bilateral breast cancer treated between 1992 and 1997. We examine the clinical and histologic characteristics of bilateral tumors and similarities or differences between cancers that occur synchronously and metachronously.

Results

Of the 1443 patients with cancer of the breast, 60 (4.2%) had bilateral cancers. Thirty nine tumors are synchronous (65%) and 21 metachronous (35%). The mean age at diagnosis of first cancer is 11 years younger in metachronous. Patients with family history of breast cancer were 35.9% in metachronous and 19% in synchronous. The interval between metachronous tumors was 80 months. There is no histologic differences between synchronous and metachronous cancers. Supervivence is best in metachronous.

Conclusions

The risk of bilateral cancer is greatest in women whose first cancer develops in younger ages, and is higher in patients with a family history of breast cancer. An indefinite, meticulous follow-up is necessary to detect preclinical second cancers.

Key words:
Cancer
Bilateral
Breast
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