<?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[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>S2307-04202022000100024</article-id>
<article-id pub-id-type="doi">10.18004/sopaci.2022.abril.24</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Síndrome de Horner en una paciente, luego de la resección de Schwannoma cervical de localización atípica. Presentación de caso y revisión de tema.]]></article-title>
<article-title xml:lang="en"><![CDATA[Horner Syndrome on a female patient, after the removal of a rare location of a cervical Schawannoma. Case description and a short revision.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duque]]></surname>
<given-names><![CDATA[Carlos S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Uribe]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vanegas]]></surname>
<given-names><![CDATA[Nataly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa]]></surname>
<given-names><![CDATA[Martin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marulanda]]></surname>
<given-names><![CDATA[Marcela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacio]]></surname>
<given-names><![CDATA[María Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Pablo Tobón Uribe  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Cartagena Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Cartagena ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Militar Central  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Antioquia Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Clínica Las Américas-AUNA Instituto de Cancerología ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>46</volume>
<numero>1</numero>
<fpage>24</fpage>
<lpage>26</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2307-04202022000100024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2307-04202022000100024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2307-04202022000100024&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Mujer de 57 años, sin antecedentes médicos importantes, quien consulto por masa a nivel cervical derecha infra mandibular de dos años de evolución y crecimiento progresivo. La tomografía contrastada demostró tumoración sospechosa de Schwannoma del plexo simpático cervical superior, el cual fue confirmado por patología luego de ser resecado. Gracias a un detallado estudio de las imágenes, se explicó a la paciente en el preoperatorio la posibilidad de desarrollar síndrome de Horner, posterior a la resección de la masa, como en realidad ocurrió. Es importante conocer la anatomía y fisiología de la vía oculosimpática y su relación con estructuras en el cuello.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary This is the case of a 57-year-old female patient who was seen due to a right upper neck lower jaw mass. On contrast CT a sympathetic chain Schwannoma was suspected and later confirmed by pathology once the lesion was resected. Thanks to the careful study of her images, the possibility of developing a Horner´s syndrome once the mas was resected was explained to the patient prior to her intervention, as it did happen. It is vital that the surgeon knows the anatomy and physiology of the oculosympathetic pathway and its relationship with the neck structures.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Síndrome de Horner]]></kwd>
<kwd lng="es"><![CDATA[Schwannoma de plexo simpático]]></kwd>
<kwd lng="es"><![CDATA[nervio Vago]]></kwd>
<kwd lng="en"><![CDATA[Horner syndrome]]></kwd>
<kwd lng="en"><![CDATA[Sympathetic chain Schwannoma]]></kwd>
<kwd lng="en"><![CDATA[Vagus nerve.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colreavy]]></surname>
<given-names><![CDATA[MP]]></given-names>
</name>
<name>
<surname><![CDATA[Lacy]]></surname>
<given-names><![CDATA[PD]]></given-names>
</name>
<name>
<surname><![CDATA[Hughes]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Bouchier-Hayes]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Brennan]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[O&amp;apos;Dwyer AJ]]></surname>
</name>
<name>
<surname><![CDATA[Donnelly]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Gaffney]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Maguire]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[O&amp;apos;Dwyer TP]]></surname>
</name>
<name>
<surname><![CDATA[Timon]]></surname>
<given-names><![CDATA[CV]]></given-names>
</name>
<name>
<surname><![CDATA[Walsh]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Head and neck schwannomas--a 10-year review]]></article-title>
<source><![CDATA[J Laryngol Otol]]></source>
<year>2000</year>
<volume>114</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>119-24</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patil]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Rege]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Horner&amp;apos;s Syndrome due to Cervical Sympathetic Chain Schwannoma A Rare Presentation and Review of Literature]]></article-title>
<source><![CDATA[Asian J Neurosurg]]></source>
<year>2019</year>
<volume>14</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1013-6</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roper-Hall]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Historical Vignette Johann Friedrich Horner (1831-1886): Swiss Ophthalmologist, Scientific Contributor, and Accomplished Academician]]></article-title>
<source><![CDATA[Am Orthopt J]]></source>
<year>2016</year>
<volume>66</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>126-34</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abbas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Manjila]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Johann Friedrich Horner and the Repeated Discovery of Oculosympathoparesis Whose Syndrome Is It?]]></article-title>
<source><![CDATA[Neurosurgery]]></source>
<year>2015</year>
<volume>77</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>486-91</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martin]]></surname>
<given-names><![CDATA[TJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Horner Syndrome A Clinical Review]]></article-title>
<source><![CDATA[ACS Chem Neurosci]]></source>
<year>2018</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>177-86</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yoo]]></surname>
<given-names><![CDATA[YJ]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[HK]]></given-names>
</name>
<name>
<surname><![CDATA[Hwang]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efficacy of digital pupillometry for diagnosis of Horner syndrome]]></article-title>
<source><![CDATA[PLoS One]]></source>
<year>2017</year>
<volume>12</volume>
<numero>6</numero>
<issue>6</issue>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beard]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Müller&amp;apos;s superior tarsal muscle anatomy, physiology, and clinical significance]]></article-title>
<source><![CDATA[Ann Plast Surg]]></source>
<year>1985</year>
<volume>14</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>324-33</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nagy]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[Hayman]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Diaz-Marchan]]></surname>
<given-names><![CDATA[PJ]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[AG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Horner&amp;apos;s syndrome due to first-order neuron lesions of the oculosympathetic pathway]]></article-title>
<source><![CDATA[AJR Am J Roentgenol]]></source>
<year>1997</year>
<volume>169</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>581-4</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Khan]]></surname>
<given-names><![CDATA[AM]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chiropractic sympathectomy carotid artery dissection with oculosympathetic palsy after chiropractic manipulation of the neck]]></article-title>
<source><![CDATA[Mt Sinai J Med]]></source>
<year>2005</year>
<volume>72</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>207-10</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kardon]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anatomy and physiology of the autonomic nervous system]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[NR]]></given-names>
</name>
<name>
<surname><![CDATA[Newman]]></surname>
<given-names><![CDATA[NJ]]></given-names>
</name>
<name>
<surname><![CDATA[Biousse]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Kerrison]]></surname>
<given-names><![CDATA[JB]]></given-names>
</name>
</person-group>
<source><![CDATA[Walsh and Hoyt Clinical Neuro-ophthalmology]]></source>
<year>2005</year>
<edition>6th</edition>
<page-range>649</page-range><publisher-name><![CDATA[Williams &amp; Wilkins, Baltimore]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mahoney]]></surname>
<given-names><![CDATA[NR]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[GT]]></given-names>
</name>
<name>
<surname><![CDATA[Menacker]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pediatric horner syndrome etiologies and roles of imaging and urine studies to detect neuroblastoma and other responsible mass lesions]]></article-title>
<source><![CDATA[Am J Ophthalmol]]></source>
<year>2006</year>
<volume>142</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>651-9</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sabbagh]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<name>
<surname><![CDATA[De Lott]]></surname>
<given-names><![CDATA[LB]]></given-names>
</name>
<name>
<surname><![CDATA[Trobe]]></surname>
<given-names><![CDATA[JD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Causes of Horner Syndrome A Study of 318 Patients]]></article-title>
<source><![CDATA[J Neuroophthalmol]]></source>
<year>2020</year>
<volume>40</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>362-9</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
