<?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>0034-7493</journal-id>
<journal-title><![CDATA[Revista Cubana de Cirugía]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Cir]]></abbrev-journal-title>
<issn>0034-7493</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74932023000200009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Hemangiopericitoma en el cuello]]></article-title>
<article-title xml:lang="en"><![CDATA[Hemangiopericytoma in the Neck]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias Garzón]]></surname>
<given-names><![CDATA[Williams]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pacheco Barzallo]]></surname>
<given-names><![CDATA[Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espín Chico]]></surname>
<given-names><![CDATA[Blanca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Quito n.º 1 de la Policía Nacional Servicio de Cirugía Oncológica ]]></institution>
<addr-line><![CDATA[ Quito]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Metropolitano, Servicio de Cirugía General  ]]></institution>
<addr-line><![CDATA[ Quito]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital General Docente Ambato Servicio de Medicina Interna ]]></institution>
<addr-line><![CDATA[ Quito]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>62</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-74932023000200009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-74932023000200009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-74932023000200009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El hemangiopericitoma es un raro tumor mesenquimal (vascularizado y potencialmente maligno) derivado de los pericitos, que puede aparecer en cualquier parte del cuerpo; sin embargo, en el cuello se describen casos aislados. La resección quirúrgica completa constituye la piedra angular del tratamiento.  Objetivo: Presentar un caso de un hemangiopericitoma en el cuello, como un caso inusual, con potencial maligno desconocido, diagnóstico y tratamiento oportuno.  Presentación de caso: Paciente de sexo masculino, de 39 años de edad, sin antecedentes de enfermedad conocidos, con una masa perceptible a nivel V del cuello derecho. Estudios de imagen muestran un tumor vascularizado de aproximadamente 6 x 7 x 6 cm, entre los músculos escalenos, que fue originado en la arteria cervical profunda. Se confirmó mediante biopsia incisional el hemangiopericitoma, el cual fue tratado mediante resección tumoral completa y radioterapia adyuvante. Actualmente el paciente no tiene actividad tumoral después de su tratamiento inicial.  Conclusiones: El hemangiopericitoma en el cuello es raro, el diagnóstico constituye un reto clínico e histológico, ya que, al ser poco común, su potencial maligno resulta desconocido. Aquellos tumores que tienen bajo grado de malignidad pueden ser controlados, de acuerdo a su localización y tamaño, mediante resección completa; mientras que los tumores de alto grado pueden recurrir y dar origen a metástasis. Nuestro paciente tuvo características histopatológicas con invasión capsular, lo que trajo como consecuencia un incremento del riesgo de recurrencia local. Por ese motivo, se decidió aplicar tratamiento adyuvante con radioterapia. El paciente se mantiene sin recurrencia tumoral local y a distancia después de 9 años de vigilancia médica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Hemangiopericytoma is a rare mesenchymal tumor (vascularized and potentially malignant) derived from pericytes. It can occur anywhere in the body; however, isolated cases are described in the neck. Complete surgical resection is the cornerstone of treatment.  Objective:  To present a case of hemangiopericytoma in the neck, as an unusual case, with unknown malignant potential, as well as its timely diagnosis and treatment.  Case presentation: A 39-year-old male patient, with no known history of disease, had a noticeable mass at the V level of the right neck. Imaging studies showed a vascularized tumor of approximately 6 x 7 x 6 cm, between the scalene muscles, which originated in the deep cervical artery. Hemangiopericytoma was confirmed by incisional biopsy, as well as treated by complete tumor resection and with adjuvant radiotherapy. Currently, the patient has no tumor activity after his initial treatment.  Conclusions:  Hemangiopericytoma in the neck is rare. Its diagnosis is a clinical and histologic challenge because, being uncommon, its malignant potential is unknown. Those tumors with low-grade malignancy can be controlled, according to their location and size, by complete resection; while high-grade tumors may recur and give rise to metastases. Our patient had histopathologic features with capsular invasion, which resulted in an increased risk of local recurrence. For this reason, adjuvant treatment with radiotherapy was decided to be applied. The patient remains without local or distant tumor recurrence after 9 years of medical surveillance.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[hemangiopericitoma]]></kwd>
<kwd lng="es"><![CDATA[tumor vascular]]></kwd>
<kwd lng="es"><![CDATA[tumor mesenquimal]]></kwd>
<kwd lng="en"><![CDATA[hemangiopericytoma]]></kwd>
<kwd lng="en"><![CDATA[vascular tumor]]></kwd>
<kwd lng="en"><![CDATA[mesenchymal tumor]]></kwd>
</kwd-group>
</article-meta>
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