Cancer de mama oculto: dos casos clínicos analizados según el concepto actual

Occult breast cancer is expressed as a metastatic axillary lymph node without clinical or imaging evidence of a primary tumor in the breast. The old concept involved non palpable tumors. Its incidence is low, representing only 0.3 to 1% of all breast cancer cases. The search for the primary tumors i...

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Autores principales:	Lee Ch,Kuen, Schwartz J,Ricardo, Iglesis G,Rodrigo, Vélez F,Rodrigo, Gómez S,Lyonel
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2006
Materias:	Breast neoplasms Mammography Mastectomy, segmental
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000900012
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spelling	oai:scielo:S0034-988720060009000122014-01-23Cancer de mama oculto: dos casos clínicos analizados según el concepto actualLee Ch,KuenSchwartz J,RicardoIglesis G,RodrigoVélez F,RodrigoGómez S,Lyonel Breast neoplasms Mammography Mastectomy, segmental Occult breast cancer is expressed as a metastatic axillary lymph node without clinical or imaging evidence of a primary tumor in the breast. The old concept involved non palpable tumors. Its incidence is low, representing only 0.3 to 1% of all breast cancer cases. The search for the primary tumors is performed with mammography, whose sensitivity is low, ranging from 0 to 56%. Several studies have shown a higher sensitivity of magnetic resonance imaging, ranging from 85 to 100%, to detect occult lesions. The treatment of isolated axillary metastases of breast cancer is controversial. An axillary dissection is recommended. If there is a suspicious image, a radiosurgical or stereotaxic biopsy should be done. However, in patients without radiological lesions in the breast, the tendency is not to perform a radical mastectomy as previously recommended, since the primary tumor will not be found in the surgical specimen in two thirds of cases. A superior and external quadrantectomy or exclusive radiotherapy should suffice. An expecting behavior is not recommended as a therapeutic alternative. Treatment should be complemented with hormonal therapy or chemotherapy. The literature suggests that prognosis is better than stage II, with a ten years survival ranging from 50 to 71%. We report two patients with a well defined occult breast cancer and based on them, a review of the subject is attempted. Considering its prognosis, physicians should be aware of this uncommon and difficult to diagnose diseaseinfo:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.134 n.9 20062006-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000900012es10.4067/S0034-98872006000900012
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Breast neoplasms Mammography Mastectomy, segmental
spellingShingle	Breast neoplasms Mammography Mastectomy, segmental Lee Ch,Kuen Schwartz J,Ricardo Iglesis G,Rodrigo Vélez F,Rodrigo Gómez S,Lyonel Cancer de mama oculto: dos casos clínicos analizados según el concepto actual
description	Occult breast cancer is expressed as a metastatic axillary lymph node without clinical or imaging evidence of a primary tumor in the breast. The old concept involved non palpable tumors. Its incidence is low, representing only 0.3 to 1% of all breast cancer cases. The search for the primary tumors is performed with mammography, whose sensitivity is low, ranging from 0 to 56%. Several studies have shown a higher sensitivity of magnetic resonance imaging, ranging from 85 to 100%, to detect occult lesions. The treatment of isolated axillary metastases of breast cancer is controversial. An axillary dissection is recommended. If there is a suspicious image, a radiosurgical or stereotaxic biopsy should be done. However, in patients without radiological lesions in the breast, the tendency is not to perform a radical mastectomy as previously recommended, since the primary tumor will not be found in the surgical specimen in two thirds of cases. A superior and external quadrantectomy or exclusive radiotherapy should suffice. An expecting behavior is not recommended as a therapeutic alternative. Treatment should be complemented with hormonal therapy or chemotherapy. The literature suggests that prognosis is better than stage II, with a ten years survival ranging from 50 to 71%. We report two patients with a well defined occult breast cancer and based on them, a review of the subject is attempted. Considering its prognosis, physicians should be aware of this uncommon and difficult to diagnose disease
author	Lee Ch,Kuen Schwartz J,Ricardo Iglesis G,Rodrigo Vélez F,Rodrigo Gómez S,Lyonel
author_facet	Lee Ch,Kuen Schwartz J,Ricardo Iglesis G,Rodrigo Vélez F,Rodrigo Gómez S,Lyonel
author_sort	Lee Ch,Kuen
title	Cancer de mama oculto: dos casos clínicos analizados según el concepto actual
title_short	Cancer de mama oculto: dos casos clínicos analizados según el concepto actual
title_full	Cancer de mama oculto: dos casos clínicos analizados según el concepto actual
title_fullStr	Cancer de mama oculto: dos casos clínicos analizados según el concepto actual
title_full_unstemmed	Cancer de mama oculto: dos casos clínicos analizados según el concepto actual
title_sort	cancer de mama oculto: dos casos clínicos analizados según el concepto actual
publisher	Sociedad Médica de Santiago
publishDate	2006
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872006000900012
work_keys_str_mv	AT leechkuen cancerdemamaocultodoscasosclinicosanalizadossegunelconceptoactual AT schwartzjricardo cancerdemamaocultodoscasosclinicosanalizadossegunelconceptoactual AT iglesisgrodrigo cancerdemamaocultodoscasosclinicosanalizadossegunelconceptoactual AT velezfrodrigo cancerdemamaocultodoscasosclinicosanalizadossegunelconceptoactual AT gomezslyonel cancerdemamaocultodoscasosclinicosanalizadossegunelconceptoactual
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Cancer de mama oculto: dos casos clínicos analizados según el concepto actual

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