<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2307-0420</journal-id>
<journal-title><![CDATA[Cirugía paraguaya]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Cir. Parag.]]></abbrev-journal-title>
<issn>2307-0420</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Paraguaya de Cirugía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2307-04202015000200004</article-id>
<article-id pub-id-type="doi">10.18004/sopaci.2015.diciembre.16-19</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[TUMORES FILOIDES DE LA MAMA. EXPERIENCIA DE 2 AÑOS: PHYLLODES OF BREAST TUMORS. 2 YEARS OF EXPERIENCE]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berni]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Notario]]></surname>
<given-names><![CDATA[Aida]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duarte]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palácios]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[De Bleecker]]></surname>
<given-names><![CDATA[Anna]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A">
<institution><![CDATA[,  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>39</volume>
<numero>2</numero>
<fpage>16</fpage>
<lpage>19</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2307-04202015000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2307-04202015000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2307-04202015000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Introducción: Los tumores filoides constituyen un grupo de raros tumores fibroepiteliales de la mama, representan el 0,3-1,0%. El diagnóstico preoperatorio inadecuado conduce con frecuencia a la escisión local con márgenes positivos, lo cual precisara una cirugía de ampliación de márgenes por la alta probabilidad de recidiva. Objetivo: Describir las características demográficas, diagnóstico, tratamiento y evolución de pacientes portadores de tumores filoides en el período de marzo del 2012 a marzo del 2014 en el Servicio de Mastología del Hospital Central del Instituto de Previsión Social. Pacientes y método: Estudio retrospectivo, observacional, descriptivo de casos consecutivos. Resultados: En 2 años se identificaron 11 casos de tumores filoides, el rango de edades fue de 33-66 años, promedio de 45.9. Las tumoraciones presentaron tamaños entre 4 a 16 cm, promedio de 8.3 cm. Todos fueron sometidos a biopsia con aguja gruesa que informo sospecha de filoides en 8 de 11, en 2 casos informo un fibroadenoma. Todos fueron sometidos a exceresis de la tumoración en donde 2 casos los márgenes estuvieron comprometidos y precisaron ampliación de márgenes, los 2 casos que fueron informados como fibroadenoma. Todas las pacientes presentan un periodo de controles mayores a 6 meses libres de enfermedad. Conclusión: La edad promedio fue de 45.9 años, el diagnóstico se realizó por biopsia con aguja gruesa, donde el informe anatomopatológico reveló tumor filoides en el 72% de los casos, la excéresis tumoral fue el tratamiento, sin complicaciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Introduction: These neoplasms are a group of rare fibroepithelial tumors of the breast, accounting for 0.3-1.0% of breast tumors. Phyllodes tumors are generally classified into benign, borderline, and malignant tumors. Inadequate preoperative diagnosis often leads to local excision with positive margins, which will require surgery to expand margins because of the high probability of recurrence. Objective: Describe the demographic characteristics, diagnosis, treatment, and evolution of patients with tumor phyllodes in the period of March 2012 to March of 2014 in the service of Mastology of the Hospital Central of the Institute of Social Welfare. Patients an methods: Retrospective, observational, descriptive study of consecutive cases. Results: In two years 11 cases of phyllodes tumors were identified, the age range was between 33 to 66 years old, mean 45.9. The tumors had sizes gobetween 4-16 cm, mean 8.3 cm. All underwent core needle biopsy that inform suspected phyllodes in 8 of 11 cases, in 2 cases they reported a fibroadenoma. All underwent exeresis of the tumor where 2 cases were committed and required margins expanding margins, both were the reported as fibroadenoma. All patients have a greater control period to 6 months free of disease. Conclusion: Phyllodes tumors are a group of rare fibroepithelial tumors of the breast, accounting for 0.3-1.0% of all breast tumors(5, 6). To distinguish a phyllodes tumor of a fibroadenoma through physical examination is extremely difficult, a core biopsy can accurately diagnose most diseases of the breast (16, 17), but may be inconclusive to differentiate a benign fibroadenoma of a phyllodes tumor. (25, 26)]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tumor filoides]]></kwd>
<kwd lng="es"><![CDATA[neoplasias de la mama]]></kwd>
<kwd lng="es"><![CDATA[biopsia]]></kwd>
<kwd lng="en"><![CDATA[phyllodes tumor]]></kwd>
<kwd lng="en"><![CDATA[breast neoplasms]]></kwd>
<kwd lng="en"><![CDATA[biopsy]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font face="Verdana" size="4"><b>TUMORES FILOIDES DE LA MAMA. EXPERIENCIA DE 2 AÑOS </b></font></p>     <p align="center"><font face="Verdana" size="3"><b> PHYLLODES OF BREAST TUMORS. 2 YEARS OF EXPERIENCE</b></font></p>      <p align="center"><font face="Verdana" size="2"><b>Berni Rodrigo<sup><a href="#medicoresidente">3</a><a name="bernir"></a><a></a></sup>, Notario Aida<sup><a href="#medicoplanta">2</a><a name="autores2"></a></sup>, Duarte José<sup><a href="#medicoplanta">2</a><a name="autores2"></a></sup>, Palácios Juan<sup><a href="#medicoplanta">2</a><a name="autores2"></a></sup>, De Bleecker Anna<sup><a href="#jefadtomastologia">1</a></sup></b></font><a name="annab"></a></p>     <p>&nbsp;</p>     <p>&nbsp;</p> <hr size "1" noshade>     <p><font face="Verdana" size="2"><b> RESUMEN</b></font></p>      <p><font face="Verdana" size="2"><b> Introducción:</b> Los tumores filoides constituyen un grupo de raros tumores fibroepiteliales de la mama, representan el 0,3-1,0%. El diagnóstico preoperatorio inadecuado conduce   con frecuencia a la escisión local con márgenes positivos, lo cual precisara una cirugía de ampliación de márgenes por la alta probabilidad de recidiva. <b>Objetivo:</b> Describir las características demográficas, diagnóstico, tratamiento y evolución de pacientes portadores de tumores filoides en el período de marzo del 2012 a marzo del 2014 en el Servicio de Mastología del Hospital Central del Instituto de Previsión Social. </b><b>Pacientes y método:</b> Estudio retrospectivo, observacional, descriptivo de casos consecutivos. <b>Resultados:</b> En 2 años se identificaron 11 casos de tumores filoides, el rango de edades fue de 33-66 años, promedio de 45.9. Las tumoraciones presentaron tamaños entre 4 a 16 cm, promedio de 8.3 cm. Todos fueron sometidos a biopsia con aguja gruesa que informo sospecha de filoides en 8 de 11, en 2 casos informo un fibroadenoma. Todos fueron sometidos a exceresis de la tumoración en donde 2 casos los márgenes estuvieron comprometidos y precisaron ampliación de márgenes, los 2 casos que fueron informados como fibroadenoma. Todas las pacientes presentan un periodo de controles mayores a 6 meses libres de enfermedad. <b>Conclusión:</b> La edad promedio fue de 45.9 años, el diagnóstico se realizó por biopsia con aguja gruesa, donde el informe anatomopatológico reveló tumor filoides en el 72% de los casos, la excéresis tumoral fue el tratamiento, sin complicaciones.</font></p>      <p><font face="Verdana" size="2"><b>Palabras Claves:</b> Tumor filoides, neoplasias de la mama, biopsia.</font></p>      <p>&nbsp;</p> <hr size "1" noshade>     <p><font face="Verdana" size="2"><b> ABSTRACT</b></font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><b>Introduction:</b> These neoplasms are a group of rare fibroepithelial tumors of the breast, accounting for 0.3-1.0% of breast tumors. Phyllodes tumors are generally classified into benign, borderline, and malignant tumors. Inadequate preoperative diagnosis often leads to local excision with positive margins, which will require surgery to expand margins because of the high probability of recurrence. Objective: Describe the demographic characteristics, diagnosis, treatment, and evolution of patients with tumor phyllodes in the period of March 2012 to March of 2014 in the service of Mastology of the Hospital Central of the Institute of Social Welfare. Patients an methods: Retrospective, observational, descriptive study of consecutive cases. Results: In two years 11 cases of phyllodes tumors were identified, the age range was between 33 to 66 years old, mean 45.9. The tumors had sizes gobetween 4-16 cm, mean 8.3 cm. All underwent core needle biopsy that inform suspected phyllodes in 8 of 11 cases, in 2 cases they reported a fibroadenoma. All underwent exeresis of the tumor where 2 cases were committed and required margins expanding margins, both were the reported as fibroadenoma. All patients have a greater control period to 6 months free of disease. Conclusion: Phyllodes tumors are a group of rare fibroepithelial tumors of the breast, accounting for 0.3-1.0% of all breast tumors <sup>(5, 6)</sup>. To distinguish a phyllodes tumor of a fibroadenoma through physical examination is extremely difficult, a core biopsy can accurately diagnose most diseases of the breast <sup>(16, 17)</sup>, but may be inconclusive to differentiate a benign fibroadenoma of a phyllodes tumor. <sup>(25, 26)</sup></font></p>     <p><font face="Verdana" size="2"><b>Keywords: </b> phyllodes tumor, breast neoplasms, biopsy.</font></p>     <p>&nbsp;</p> <hr size "1" noshade>     <p><font face="Verdana" size="3"><b>INTRODUCCIÓN</b></font></p>      <p><font face="Verdana" size="2"> Los tumores filoides de la mama presentan como grandes tumores en mujeres jóvenes. El diámetro medio de los tumores filoides es de 5 cm, y la edad media de las pacientes en el momento de la presentación es de 40 años<sup> (5, 6)</sup>. Su aspecto macroscópico, se asemeja a la cabeza de una coliflor, lo cual llevó a Johannes Muller en 1838 a clasificarlos como un tipo de sarcoma. <sup>(7, 8)</sup></font></p>      <p><font face="Verdana" size="2"> Estas neoplasias constituyen un grupo de raros tumores fibroepiteliales de la mama, representan el 0,3-1,0% de los tumores de mama <sup>(5, 6)</sup>. Los tumores filoides se clasifican   generalmente en tumores benignos, borderline, y malignos <sup>(10, 11)</sup>. Una prevalencia de recidiva y metástasis locales caracteriza a estos tumores <sup>(7, 8, 12, 13, 14)</sup>, y por lo tanto, la escisión local amplia con márgenes adecuados es el tratamiento preferido <sup>(7, 8, 12, 14)</sup>; Sin embargo, el diagnóstico preoperatorio inadecuado conduce con frecuencia a la escisión local con márgenes positivos <sup>(8)</sup>, y, a menos que una cirugía posterior para ampliación de márgenes se lleve a cabo, resultara en la recurrencia local.</font></p>     <p><font face="Verdana" size="2">  El tratamiento no quirúrgico ha sido ampliamente adoptado por fibroadenomas <sup>(15)</sup>. Dada la baja prevalencia de los tumores filoides entre tumores benignos de mama, la extirpación rutinaria de todas las lesiones benignas de las mamas no se recomienda; Por lo tanto, los fibroadenomas se deben distinguir de los tumores filoides para evitar una cirugía innecesaria. Distinguir un tumor filoides de un fibroadenoma través del examen físico es extremadamente difícil. Aunque la punción aspirativa con aguja fina para citología (PAAF) o una biopsia con aguja gruesa pueden diagnosticar con precisión la mayoría de las patologías de mama <sup>(16, 17)</sup>, la citología o la biopsia con aguja gruesa puede ser incorrecto o no concluyente para diferenciar un tumor filoides benigno de un fibroadenoma <sup>(9, 18, 19, 20, 21)</sup>. Por otra parte, mientras que una mamografía puede revelar el tumor filoides como una masa bien definida, redonda, o lobulada <sup>(22, 23, 24)</sup>, una mamografía sola no puede distinguir un tumor filoides de un fibroadenoma <sup>(25, 26)</sup>. La ecografía es una alternativa a las mamografías para la detección de lesiones de mamas, especialmente en mamas densas mamográficamente <sup>(27, 28, 29)</sup>.</font></p>     <p>&nbsp;</p>      <p><font face="Verdana" size="3"><b> OBJETIVO</b></font></p>      <p><font face="Verdana" size="2"> Describir las características demográficas, diagnóstico, tratamiento y evolución de pacientes portadores de tumores filoides en el período de marzo del 2012 a marzo del 2014 en   el Servicio de Mastología del Hospital Central del Instituto de Previsión Social</font></p>       ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><font face="Verdana" size="3"><b>DISE</b></font><strong><font face="Verdana, Arial, Helvetica, sans-serif">Ñ</font></strong><font face="Verdana" size="3"><b>O</b></font></p>     <p><font face="Verdana" size="2"> Retrospectivo, observacional, descriptivo de casos consecutivos</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="3"><b>PACIENTES Y MÉTODOS </b></font></p>       <p><font face="Verdana" size="2">Se recogieron datos de historias clínicas de pacientes sometidos a un procedimiento quirúrgico en el Servicio de Mastología del Hospital Central del Instituto de Previsión Social de Paraguay en el período de marzo del 2012 a marzo del 2014 con diagnóstico de tumor filoides.</font></p>       <p>&nbsp;</p>      <p><font face="Verdana" size="3"><b> RESULTADOS</b></font></p>      <p><font face="Verdana" size="2"> En el periodo de 2 años del estudio se identificaron 11 casos de tumores filoides, el rango de edades de las pacientes varió desde 33 hasta 66 años, con un promedio de 45.9 años para la edad de diagnóstico. En el momento de diagnóstico las tumoraciones mamarias se presentaron con tamaños que variaron entre 4 a 16 cm de diámetro mayor, con un promedio de 8.3 cm <em><b>(<a href="#2a04f1">Ver Figura 1</a>)</b></em>. Todos fueron sometidos a biopsia con aguja gruesa en donde el estudio anatomopatológico informó la sospecha de tumor filoides en 8 de 11 casos, uno de ellos informo la sospecha de malignidad que se confirmó más tarde, pero en 2 casos informó la masa como un fibroadenoma <em><b>(<a href="#2a04f2">Ver Figura 2</a>)</b></em>. Todos fueron sometidos a excéresis de la tumoración, el estudio anatomopatológico informó 5 casos de filoides benignos con menos de 5 mitosis por campo de 10 aumentos, 5 casos de filoides borderline con entre 5 a 10 mitosis por campo de 10 aumentos y un caso de filoides malignos con más de 20 mitosis por campo de 10 aumentos <em><b>(<a href="#2a04f3">Ver Figura 3</a>)</b></em>. En las resecciones se encontraron 2 casos donde los márgenes comprometidos estuvieron comprometidos y precisaron ampliación de márgenes, los 2 casos que el estudio anatomopatologico de la biopsia con aguja gruesa informo fibroadenoma. Todas las pacientes presentan un período de controles mayores a 6 meses libres de enfermedad.</font></p>     <p>&nbsp;</p>      ]]></body>
<body><![CDATA[<p align="center"><a name="2a04f1"></a><img src="/img/revistas/sopaci/v39n2/2a04f1.jpg"></p>      <p align="center"><a name="2a04f2"></a><img src="/img/revistas/sopaci/v39n2/2a04f2.jpg"></p>      <p align="center"><a name="2a04f3"></a><img src="/img/revistas/sopaci/v39n2/2a04f3.jpg"></p>      <p>&nbsp;</p>     <p><font face="Verdana" size="3"><b>DISCUSIÓN</b></font></p>      <p><font face="Verdana" size="2"> Los tumores filoides son tumores poco frecuentes de las mamas que, al igual que un fibroadenoma, contiene dos tipos de tejido mamario: tejido estromal (conectivo) y tejido glandular (lobulillo y conducto). <sup>(1)</sup></font></p>      <p><font face="Verdana" size="2"> La literatura reporta que son más frecuentes en mujeres jóvenes de entre 30 y 49 años de edad, aunque pueden presentarse en mujeres de cualquier edad, en nuestro trabajo, el promedio de edad de diagnóstico fue de 45 años, ligeramente más alto en nuestra población que la descripta en otros estudios. <sup>(5, 6)</sup></font></p>      <p><font face="Verdana" size="2"> El motivo de consulta es generalmente la presencia de un tumor mamario, los pacientes refieren que sienten como masas que no causan dolor, aunque algunos pueden causarlo. éstos pueden crecer rápidamente y estirar la piel. A menudo son difíciles de diferenciar de los fibroadenomas cuando se observan en los estudios por imágenes, reportamos un tamaño promedio de la tumoración al momento de diagnóstico de 8.3cm, en tanto varios autores informan de 5cm <sup>(5, 6, 7)</sup> lo que podría deberse a que nuestra población presenta un mayor retraso en acudir a la consulta.</font></p>      <p><font face="Verdana" size="2"> El método que proporciona la mayor certeza diagnóstica es la biopsia con aguja gruesa pero del mismo modo presenta un margen de falsos negativos <sup>(9, 18, 19, 20, 21)</sup> como lo reportado en nuestro estudio en donde 2 de las 11 biopsias dieron falsos negativos.</font></p>      <p>&nbsp;</p>       ]]></body>
<body><![CDATA[<p><font face="Verdana" size="3"><b>CONCLUSIÓN</b></font></p>       <p><font face="Verdana" size="2"> La edad promedio fue de 45.9 años, el diagnóstico se realizó por biopsia con aguja gruesa, donde el informe anatomopatológico reveló tumor filoides en el 72% de los casos, la excéresis tumoral fue el tratamiento, sin complicaciones.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana" size="3"><b>REFERENCIAS</b></font></p>     <p><font face="Verdana" size="2">  1. Pietruszka M, Barnes L: Cystosarcoma phyllodes. Cancer41: 1974-1983, 1978</font></p>     <p><font face="Verdana" size="2">2. Haagensen C: Cystosarcoma phyllodes. In: Haagensen C (ed) Diseases of the Breast. 3rd edition. WB Saunders, Phil., 1986, pp 284-312</font></p>     <!-- ref --><p><font face="Verdana" size="2">3. Rosai J: Phyllodes tumor. In: Rosai J (ed) Ackerman’s Surgical Pathology. 8th edition. 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<body><![CDATA[<p><font face="Verdana" size="2"> 27. Ma L, Fishell E, Wright B, Hanna W, Allan S, Boyd NF (1992) Case control study of factors associated with failure to detect breast cancer by mammography. J Natl Cancer Inst 84:781–785</font></p>      <p><font face="Verdana" size="2"> 28. Fajardo L, Hillman BJ, Frey C (1988) Correlation between breast parenchymal patterns and mammographers’ certainty of diagnosis. Invest Radiol 23:505–508</font></p>       <p><font face="Verdana" size="2">29. Jackson VP, Hendrick RE, Feig SA, Kopans DB (1993) Imaging of the radiographically dense breast. Radiology 188:297–301.</font></p>       <p>&nbsp;</p>     <p><font face="Verdana" size="2"><em><b>Servicio de Mastología. Hospital Central “Dr. Emilio Cubas”. Instituto de Previsión Social. Asunción, Paraguay</b></em><br />   <em><a name="jefadtomastologia"></a><a href="#annab">1</a>. Jefa del departamento de Mastología</em><br />   <em><a name="medicoplanta"></a><a href="#autores2">2</a>. Médico de planta</em><br />   <em><a name="medicoresidente"></a><a href="#bernir">3</a>. Médico Residente</em><br />   <em><b> Contacto:</b> Rodrigo Arturo Berni Clebsch. Dirección: Coronel escurra 755 casi Juan Manuel Frutos – Asunción – Paraguay Correo: <a href="mailto:rodrigo81berni@hotmail.com">rodrigo81berni@hotmail.com</a>. Teléfono: 0971980730</em><br /> <em>Fecha de Recepción: octubre 2015 Fecha de Aceptación: noviembre 2015</em></font></p>      ]]></body><back>
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