<?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>2448-9190</journal-id>
<journal-title><![CDATA[Revista alergia México]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. alerg. Méx.]]></abbrev-journal-title>
<issn>2448-9190</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Inmunología Clínica y Alergia A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-91902021000100084</article-id>
<article-id pub-id-type="doi">10.29262/ram.v68i1.844</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Niña con neumonitis por hipersensibilidad. Reporte de un caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Girl with hypersensitivity pneumonitis. A case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Loli-Ausejo]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vílchez-Sánchez]]></surname>
<given-names><![CDATA[Francisca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tomás-Pérez]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario La Paz Servicio de Alergología ]]></institution>
<addr-line><![CDATA[Madrid ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>68</volume>
<numero>1</numero>
<fpage>84</fpage>
<lpage>88</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-91902021000100084&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-91902021000100084&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-91902021000100084&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes:  La neumonitis por hipersensibilidad agrupa varias enfermedades inflamatorias pulmonares que afectan preferentemente el tejido alveolar y perialveolar. En niños se trata de una enfermedad muy rara, con diagnóstico complicado debido a que la exposición antigénica suele pasar desapercibida.  Caso clínico:  Niña de 12 años que presentaba tos seca, disnea, sibilancias y taquipnea con mejoría parcial al tratamiento con broncodilatadores y corticoides inhalados. En la espirometría presentó un patrón restrictivo y una capacidad de difusión pulmonar reducida; en la tomografía computarizada se observaron opacidades centrolobulillares en vidrio esmerilado y del lavado broncoalveolar se obtuvo un cociente de linfocitosis CD4/CD8 de 2.46. Se obtuvo IgG positiva a plumas de aves.  Conclusiones:  El manejo de la neumonitis por hipersensibilidad se basa en evitar la exposición al agente causante, lo que determina el pronóstico; de ahí que resulta de vital importancia realizar una historia clínica exhaustiva. Pueden indicarse corticosteroides en función de la respuesta clínica, la función pulmonar y la mejoría radiológica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  Hypersensitivity pneumonitis entails several inflammatory lung diseases that preferentially affect the alveolar and perialveolar tissue. It is a very rare disease in children, with a complicated diagnosis due to the fact that antigen exposure usually goes unnoticed.  Case report:  A 12-year-old girl with dry cough, dyspnea, wheezing, and tachypnea, with partial improvement after treatment with inhaled bronchodilators and corticoids. The spirometry showed a restrictive pattern and reduced lung diffusion capacity; in the CT scan, centrilobular ground-glass opacities were observed, and a lymphocyte count of CD4/CD8 of 2.46 (lymphocytosis) was obtained from the bronchoalveolar lavage. IgG positivity to bird feathers was obtained.  Conclusions:  The treatment of hypersensitivity pneumonitis is based on avoiding exposure to the causative agent, which is determined by the prognosis; for which taking an extensive medical history is of paramount importance. Corticosteroids can be prescribed based on the clinical response, the pulmonary function, and the radiological improvement.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Neumonitis por hipersensibilidad]]></kwd>
<kwd lng="es"><![CDATA[Alveolitis alérgica extrínseca]]></kwd>
<kwd lng="es"><![CDATA[Antígenos inhalables]]></kwd>
<kwd lng="en"><![CDATA[Extrinsic allergic alveolitis]]></kwd>
<kwd lng="en"><![CDATA[Hypersensitivity pneumonitis]]></kwd>
<kwd lng="en"><![CDATA[Inhalant allergens]]></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[Jordan]]></surname>
<given-names><![CDATA[LE]]></given-names>
</name>
<name>
<surname><![CDATA[Guy]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Paediatric feather duvet hypersensitivity pneumonitis]]></article-title>
<source><![CDATA[BMJ Case Rep]]></source>
<year>2015</year>
<volume>2015</volume>
</nlm-citation>
</ref>
<ref id="B2">
<label>2.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spagnolo]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Rossi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cavazza]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bonifazi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Paladini]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Bonella]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hypersensitivity pneumonitis: a comprehensive review]]></article-title>
<source><![CDATA[J Investig Allergol Clin Immunol]]></source>
<year>2015</year>
<volume>25</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>237-50</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[Sahin]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Kaproth-Joslin]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Hobbs]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hypersensitivity pneumonitis]]></article-title>
<source><![CDATA[Semin Roentgenol]]></source>
<year>2019</year>
<volume>54</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>37-43</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[Soumagne]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Dalphin]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Dalphin]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hypersensitivity pneumonitis in children]]></article-title>
<source><![CDATA[Rev Mal Respir]]></source>
<year>2019</year>
<volume>36</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>495-507</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[Habra]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[AbdulWahab]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A rare pediatric case of severe Bird Fancier's Lung presented with viral pneumonitis-like picture]]></article-title>
<source><![CDATA[Children (Basel)]]></source>
<year>2018</year>
<volume>5</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>149</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[Griese]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Haug]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Hartl]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Teusch]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Glöckner-Pagel]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Brasch]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hypersensitivity pneumonitis lessons for diagnosis and treatment of a rare entity in children]]></article-title>
<source><![CDATA[Orphanet J Rare Dis]]></source>
<year>2013</year>
<volume>8</volume>
<page-range>121</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ratjen]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Costabel]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Griese]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Paul]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bronchoalveolar lavage fluid findings in children with hypersensitivity pneumonitis]]></article-title>
<source><![CDATA[Eur Respir J]]></source>
<year>2003</year>
<volume>21</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>144-8</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[Fernández-Pérez]]></surname>
<given-names><![CDATA[ER]]></given-names>
</name>
<name>
<surname><![CDATA[Swigris]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Forssén]]></surname>
<given-names><![CDATA[AV]]></given-names>
</name>
<name>
<surname><![CDATA[Tourin]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Solomon]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Huie]]></surname>
<given-names><![CDATA[TJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Identifying an inciting antigen is associated with improved survival in patients with chronic hypersensitivity pneumonitis]]></article-title>
<source><![CDATA[Chest]]></source>
<year>2013</year>
<volume>144</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1644-51</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[Ryerson]]></surname>
<given-names><![CDATA[CJ]]></given-names>
</name>
<name>
<surname><![CDATA[Vittinghoff]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ley]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
<name>
<surname><![CDATA[Mooney]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Jones]]></surname>
<given-names><![CDATA[KD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Predicting survival across chronic interstitial lung disease the ILD-GAP model]]></article-title>
<source><![CDATA[Chest]]></source>
<year>2014</year>
<volume>145</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>723-8</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sisman]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Buchvald]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Blyme]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Mortensen]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Nielsen]]></surname>
<given-names><![CDATA[KG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pulmonary function and fitness years after treatment for hypersensitivity pneumonitis during childhood]]></article-title>
<source><![CDATA[Pediatr Pulmonol]]></source>
<year>2016</year>
<volume>51</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>830-7</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
