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Rev. venez. oncol ; 25(1): 39-45, ene.-mar. 2013. ilus
Article in Spanish | LILACS | ID: lil-718955

ABSTRACT

Los carcinomas metaplásicos de mama son un grupo heterogéneo de neoplasias malignas poco frecuentes poco diferenciadas; que representan menos del 1% de todos los tumores de mama invasivos, en los que un segmento de células epiteliales ha sufrido metaplasia, son bifásicos, capaces de adoptar un fenotipo variable, con receptores de estrógeno, progesterona, Her2 negativos. Los carcinomas metaplásicos de mama son más frecuentes en mujeres mayores de 55 años. Su pronóstico es peor que los carcinomas convencionales se relaciona con el tamaño tumoral, tipo histológico, y grado de componente mesenquimático. El tratamiento inicial es quirúrgicoy se considera imprescindible el empleo de técnicas de inmunohistoquímica para diagnosticarlos. Presentamos el caso de una paciente joven de 28 años de edad a quiense le realizó en clínica particular, una mastectomía parcial que reportó carcinoma metaplásico, acudiendo a nuestro servicio, donde se le realiza mastectomía radical modificada tipo Madden preservadora de piel.


Metaplastic breast carcinomas are heterogeneous group of malignancies poorly differentiated and rare, representing less than 1% of all invasive breast tumors, in which a segment has undergone metaplasia epithelial cells are biphasic which can take a variable phenotype, with negative estrogen and progestagen receptors Her2 negative. Metaplastic breast carcinomas are more common in women over 55 years, however, most reports ascribed different characteristics to those of infiltrating ductal carcinoma, found larger tumors, high grade, lymphatic glandular less affected with hormone receptor negative. The prognosis is worse than conventional carcinomas is related to tumor size, histological type, type degree of mesenchymal component.The treatment is surgical is considered essential to the use of immunohistochemistry for diagnosis. We report the case of 28 year woman who was held in private clinic, a partial mastectomy reported metaplastic carcinoma, going to our service, which performs modified radical mastectomy Madden type of skin sparing.


Subject(s)
Humans , Female , Adult , Carcinoma, Ductal, Breast , Carcinoma, Squamous Cell , Mastectomy/methods , Metaplasia/pathology , Breast Neoplasms/surgery , Breast Neoplasms/diagnosis , Breast Neoplasms/therapy , Medical Oncology
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