<?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>0034-7507</journal-id>
<journal-title><![CDATA[Revista Cubana de Estomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Estomatol]]></abbrev-journal-title>
<issn>0034-7507</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75072012000100009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Amiloidosis bucal]]></article-title>
<article-title xml:lang="en"><![CDATA[Oral amyloidosis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lima Arrais Ribeiro]]></surname>
<given-names><![CDATA[Isabella]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lacerda Brasileiro Junior]]></surname>
<given-names><![CDATA[Vilson]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hoston Gonçalves Pereira]]></surname>
<given-names><![CDATA[Olavo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diniz da Rosa]]></surname>
<given-names><![CDATA[Marize Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moura de Lira]]></surname>
<given-names><![CDATA[Hálamo José]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidade Federal da Paraíba  ]]></institution>
<addr-line><![CDATA[João Pessoa ]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2012</year>
</pub-date>
<volume>49</volume>
<numero>1</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072012000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072012000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072012000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A amiloidose é uma doença complexa rara de difícil diagnóstico que ocorre devido à deposição de substância amilóide no meio extracelular. Ao ser diagnosticado na cavidade bucal, deve-se monitorar o paciente a fim de avaliar possíveis complicações sistêmicas da doença. Diante disso, o objetivo do presente estudo é relatar um caso de amiloidose oral em uma paciente do gênero feminino de 72 anos de idade. Baseado nos sinais clínicos observados, a hipótese diagnóstica foi de fibroma traumático. Após realização de biópsia e exame histopatológico, o diagnóstico foi de amiloidose oral, o que foi confirmado com a coloração do espécime com o reagente vermelho congo. Depósitos de amilóide foram encontrados no tecido conjuntivo, na avaliação através da luz polarizada, que apresentou birrefringência. Tal achado foi preocupante, já que a amiloidose geralmente acomete diversos tecidos levando a comprometimentos sistêmicos. Por essa razão a paciente foi encaminhada a procurar atendimento médico. No entanto, houve abandono do tratamento e a mesma veio a óbito 6 meses após o diagnóstico da doença. Lesões orais aparentemente simples podem revelar doenças raras e de difícil tratamento. O diagnóstico preciso e acompanhamentos médicos são fundamentais na sobrevida do paciente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Amyloidosis is an uncommon complicated disease of a difficult diagnosis occurring due to the amyloid substance depot in the extracellular medium. Being diagnosed in the oral cavity, the patient must to be supervised to assess the potential systemic complications of disease. The aim of present paper was to present a case of oral amyloidosis in a female patient ages 72 presenting with traumatic fibroma. After performance of a biopsy and the histopathological examination, the diagnosis was the presence of amyloidosis, confirmed with the help of the sample using Congo red reactant. Amyloid depots were found in the conjunctive tissue which under the polarized light showed birefringence. This finding was worrying since the amyloidosis involves different tissues leading to systemic complications. Thus, the patient was oriented to search medical care; however she abandons treatment dying 6 months after diagnosis of the disease. The apparently single oral injuries may to reveal uncommon diseases and of difficult treatment. The precise treatment and the medical supervision are essential in the patient's survival.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[La amiloidosis es una enfermedad compleja, rara, de difícil diagnóstico, que ocurre debido al depósito de sustancia amiloidea en medio extracelular. Al ser diagnosticada en la cavidad bucal, el paciente debe tener supervisión médica para evaluar las posibles complicaciones sistémicas de la enfermedad. El objetivo del presente estudio fue presentar un caso de amiloidosis bucal en un paciente del género femenino de 72 años de edad. Basados en las señales clínicas observadas, la hipótesis diagnóstica fue de un fibroma traumático. Después de la realización de una biopsia y del examen histopatológico, el diagnóstico fue de amiloidosis, confirmado con la coloración del espécimen con el reactivo rojo congo. Los depósitos de amiloide fueron encontrados en el tejido conjuntivo, que con la luz polarizada presentó birrefringencia. Tal hallazgo fue preocupante, ya que la amiloidosis afecta diversos tejidos, lo que puede provocar complicaciones sistémicas. Por esa razón la paciente fue orientada a buscar atención médica. Sin embargo, abandonó el tratamiento y falleció 6 meses después del diagnóstico de la enfermedad. Lesiones bucales aparentemente simples pueden revelar enfermedades raras y de difícil tratamiento. El diagnóstico preciso y la supervisión médica son fundamentales para la sobrevida del paciente.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[amiloidose]]></kwd>
<kwd lng="pt"><![CDATA[amilóide]]></kwd>
<kwd lng="pt"><![CDATA[lesão bucal]]></kwd>
<kwd lng="en"><![CDATA[amyloidosis]]></kwd>
<kwd lng="en"><![CDATA[amyloid]]></kwd>
<kwd lng="en"><![CDATA[oral injury]]></kwd>
<kwd lng="es"><![CDATA[amiloidosis]]></kwd>
<kwd lng="es"><![CDATA[amiloide]]></kwd>
<kwd lng="es"><![CDATA[lesión bucal]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    <B>PRESENTACI&Oacute;N DE CASO</B></font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="4"><b>Amiloidosis    bucal</b></font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    </font></p> <B>    <P>      <P>&nbsp; </B>     <P><b><font face="Verdana, Arial, Helvetica, sans-serif" size="3">Oral amyloidosis</font>    </b> <B>    <P>&nbsp;     <P>&nbsp;     <P>      <P>      ]]></body>
<body><![CDATA[<P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Isabella Lima Arrais    Ribeiro, Vilson Lacerda Brasileiro Junior, Olavo Hoston Gon&ccedil;alves Pereira,    Marize Raquel Diniz da Rosa, H&aacute;lamo Jos&eacute; Moura de Lira</font>  </B>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Universidade Federal    da Para&iacute;ba, Jo&atilde;o Pessoa, Brasil.    <br>   </font>     <P>&nbsp;     <P>&nbsp;     <P><HR size="1" noshade>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>RESUMO</B> </font>  </p>     <P>      <P><font color="#292526" face="Verdana, Arial, Helvetica, sans-serif" size="2">A    amiloidose &eacute; uma doen&ccedil;a complexa rara de dif&iacute;cil diagn&oacute;stico    que ocorre devido &agrave; deposi&ccedil;&atilde;o </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">de    subst&acirc;ncia amil&oacute;ide no meio extracelular<FONT  COLOR="#292526">. Ao ser diagnosticado na cavidade bucal, deve-se monitorar o    paciente a fim de avaliar poss&iacute;veis complica&ccedil;&otilde;es sist&ecirc;micas    da doen&ccedil;a. Diante disso, o objetivo do presente estudo &eacute; relatar    um caso de amiloidose oral em uma paciente</FONT> do g&ecirc;nero feminino de    72 anos de idade. Baseado nos sinais cl&iacute;nicos observados, a hip&oacute;tese    diagn&oacute;stica foi de fibroma traum&aacute;tico. Ap&oacute;s realiza&ccedil;&atilde;o    de bi&oacute;psia e exame histopatol&oacute;gico, o diagn&oacute;stico foi de    amiloidose oral, o que foi confirmado com a colora&ccedil;&atilde;o do esp&eacute;cime    com o reagente vermelho congo. De<FONT  COLOR="#292526">p&oacute;sitos de amil&oacute;ide foram encontrados no tecido    conjuntivo, na avalia&ccedil;&atilde;o atrav&eacute;s da luz polarizada, que    apresentou birrefring&ecirc;ncia. Tal achado foi preocupante, j&aacute; que    a amiloidose geralmente acomete diversos tecidos levando a comprometimentos    sist&ecirc;micos. Por essa raz&atilde;o a paciente foi encaminhada a </FONT>procurar    atendimento m&eacute;dico. No entanto, houve abandono do tratamento e a mesma    veio a &oacute;bito 6 meses ap&oacute;s o diagn&oacute;stico da doen&ccedil;a.    Les&otilde;es orais aparentemente simples podem revelar doen&ccedil;as raras    e de dif&iacute;cil tratamento. O diagn&oacute;stico preciso e acompanhamentos    m&eacute;dicos s&atilde;o fundamentais na sobrevida do paciente. </font>     <P>      ]]></body>
<body><![CDATA[<P> <b><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><I>Palavras chave:</I></font></b><font face="Verdana, Arial, Helvetica, sans-serif" size="2">  amiloidose, amil&oacute;ide, les&atilde;o bucal. <HR size="1" noshade></font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>ABSTRACT</B>    </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Amyloidosis is    an uncommon complicated disease of a difficult diagnosis occurring due to the    amyloid substance depot in the extracellular medium. Being diagnosed in the    oral cavity, the patient must to be supervised to assess the potential systemic    complications of disease. The aim of present paper was to present a case of    oral amyloidosis in a female patient ages 72 presenting with traumatic fibroma.    After performance of a biopsy and the histopathological examination, the diagnosis    was the presence of amyloidosis, confirmed with the help of the sample using    Congo red reactant. Amyloid depots were found in the conjunctive tissue which    under the polarized light showed birefringence. This finding was worrying since    the amyloidosis involves different tissues leading to systemic complications.    Thus, the patient was oriented to search medical care; however she abandons    treatment dying 6 months after diagnosis of the disease. The apparently single    oral injuries may to reveal uncommon diseases and of difficult treatment. The    precise treatment and the medical supervision are essential in the patient's    survival. </font>     <P>      <P> <b><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><I>Key words:</I></font></b><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><I>  </I>amyloidosis, amyloid, oral injury. <HR size="1" noshade></font>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>RESUMEN</b></font>    <B></B>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">La amiloidosis    es una enfermedad compleja, rara, de dif&iacute;cil diagn&oacute;stico, que    ocurre debido al dep&oacute;sito de sustancia amiloidea en medio extracelular.    Al ser diagnosticada en la cavidad bucal, el paciente debe tener supervisi&oacute;n    m&eacute;dica para evaluar las posibles complicaciones sist&eacute;micas de    la enfermedad. El objetivo del presente estudio fue presentar un caso de amiloidosis    bucal en un paciente del g&eacute;nero femenino de 72 a&ntilde;os de edad. Basados    en las se&ntilde;ales cl&iacute;nicas observadas, la hip&oacute;tesis diagn&oacute;stica    fue de un fibroma traum&aacute;tico. Despu&eacute;s de la realizaci&oacute;n    de una biopsia y del examen histopatol&oacute;gico, el diagn&oacute;stico fue    de amiloidosis, confirmado con la coloraci&oacute;n del esp&eacute;cimen con    el reactivo rojo congo. Los dep&oacute;sitos de amiloide fueron encontrados    en el tejido conjuntivo, que con la luz polarizada present&oacute; birrefringencia.    Tal hallazgo fue preocupante, ya que la amiloidosis <font color="#000000">afecta    diversos tejidos, lo que puede provocar complicaciones sist&eacute;micas.</font>    Por esa raz&oacute;n la paciente fue orientada a buscar atenci&oacute;n m&eacute;dica.    Sin embargo, abandon&oacute; el tratamiento y falleci&oacute; 6 meses despu&eacute;s    del diagn&oacute;stico de la enfermedad. Lesiones bucales aparentemente simples    pueden revelar enfermedades raras y de dif&iacute;cil tratamiento. El diagn&oacute;stico    preciso y la supervisi&oacute;n m&eacute;dica son fundamentales para la sobrevida    del paciente. </font>      ]]></body>
<body><![CDATA[<P>      <P>  <b><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><I>Palabras clave:</I></font></b><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B>  </B>amiloidosis, amiloide, lesi&oacute;n bucal.  <HR size="1" noshade></font>      <p>&nbsp;</p>     <p>&nbsp;</p>     <P>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B><font size="3">INTRODU&Ccedil;&Atilde;O</font></B>    </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A amiloidose &eacute;    uma doen&ccedil;a complexa, de origem multifatorial, em que ocorre deposi&ccedil;&atilde;o    de subst&acirc;ncia amil&oacute;ide no meio extracelular, na forma de prote&iacute;nas    fibrilares insol&uacute;veis.<SUP>1,2</SUP> Basicamente essa deposi&ccedil;&atilde;o    de subst&acirc;ncia amil&oacute;ide pode ocorrer de forma localizada ou com    distribui&ccedil;&atilde;o sist&ecirc;mica.<SUP>3</SUP> O termo amil&oacute;ide    foi criado por Virchow na metade do s&eacute;culo <font size="1">XIX</font>    em estudos de aut&oacute;psia, referindo-se as propriedades de colora&ccedil;&atilde;o    de dep&oacute;sitos no tecido hep&aacute;tico de subst&acirc;ncia semelhante    ao amido, logo ap&oacute;s a aplica&ccedil;&atilde;o de iodo e &aacute;cido    sulf&uacute;rico.<SUP>4</SUP> </font>      <P>      ]]></body>
<body><![CDATA[<P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">O tipo localizado    dessa patologia &eacute; extremamente raro, ocorre de forma isolada e inesperada,    sem altera&ccedil;&otilde;es cl&iacute;nicas superiores ou doen&ccedil;as sist&ecirc;micas    associadas.<SUP>5</SUP> Clinicamente as les&otilde;es apresentam-se como m&uacute;ltiplos    n&oacute;dulos benignos de consist&ecirc;ncia amolecida.<SUP>6,7 </SUP>Dificilmente    as les&otilde;es da amiloidose ocorrem na regi&atilde;o de cabe&ccedil;a e pesco&ccedil;o.    Entretanto quando presentes nessa &aacute;rea afetam geralmente a laringe e    tire&oacute;ide, sendo pouco comuns na cavidade bucal. De acordo com a literatura,    os locais mais atingidos na cavidade bucal s&atilde;o a l&iacute;ngua, l&aacute;bios    e mucosa jugal.<SUP>6,8</SUP> </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Quando associada    a quadros de doen&ccedil;a sist&ecirc;mica, as amiloidoses s&atilde;o classificadas    de acordo com o tipo de prote&iacute;na amil&oacute;ide encontrada. Nesses casos,    sua sintomatologia &eacute; governada pela doen&ccedil;a subjacente e pelo tipo    de prote&iacute;na depositada, podendo ser evidenciada a presen&ccedil;a de    complica&ccedil;&otilde;es renais e card&iacute;acas inexplic&aacute;veis. Em    todas as formas de amiloidose sist&ecirc;mica, a evolu&ccedil;&atilde;o do paciente    &eacute; geralmente cont&iacute;nua, grave e finalmente fatal.<SUP>9</SUP> </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">O diagn&oacute;stico    dessa doen&ccedil;a baseia-se principalmente na demonstra&ccedil;&atilde;o histol&oacute;gica    de amostras de bi&oacute;psias.<SUP>9 </SUP>Seu progn&oacute;stico &eacute;    bastante favor&aacute;vel para pacientes portadores de doen&ccedil;a do tipo    localizada. Todavia quando associada a complica&ccedil;&otilde;es sist&ecirc;micas,    a expectativa de vida cai drasticamente e muitos pacientes n&atilde;o ultrapassam    os 2 anos de tratamento.<SUP>10</SUP> </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">As estrat&eacute;gias    de tratamento s&atilde;o: a redu&ccedil;&atilde;o da concentra&ccedil;&atilde;o    de precursor amil&oacute;ide sendo em alguns casos realizado o transplante de    f&iacute;gado, inibi&ccedil;&atilde;o da forma&ccedil;&atilde;o dos nichos o    que &eacute; feito atrav&eacute;s da utiliza&ccedil;&atilde;o de drogas como    a colchicina que atua impedindo o surgimento de novos grupos amil&oacute;ides,    aumento da estabilidade de prote&iacute;nas amiloidog&ecirc;nicas atrav&eacute;s    da utiliza&ccedil;&atilde;o de ligantes, inibi&ccedil;&atilde;o de intera&ccedil;&otilde;es    moleculares a fim de impedir a forma&ccedil;&atilde;o e caracteriza&ccedil;&atilde;o    de fibrilas amil&oacute;ides e por fim, a acelera&ccedil;&atilde;o da remo&ccedil;&atilde;o    do conte&uacute;do amil&oacute;ide, tratando os pacientes com um an&aacute;logo    iodado de doxorrubicina que reabsorve quantidades consider&aacute;veis de amil&oacute;ide.<SUP>9</SUP>    Diante disso, o objetivo desse trabalho foi relatar um caso de amiloidose em    uma paciente que abandonou o tratamento e veio a &oacute;bito pouco tempo ap&oacute;s    o diagn&oacute;stico da patologia. </font>     <P>      <P>&nbsp;     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B><font size="3">RELATO    DO CASO</font></B> </font>      ]]></body>
<body><![CDATA[<P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Paciente do g&ecirc;nero    feminino, 72 anos de idade, melanoderma e profissional do lar, procurou servi&ccedil;o    de Cirurgia Buco-Maxilo-Facial do munic&iacute;pio de Jo&atilde;o Pessoa, Brasil,    com queixa de aumento de volume na regi&atilde;o intrabucal, com tempo de evolu&ccedil;&atilde;o    de mais de 3 anos. A paciente relatava uso de pr&oacute;tese superior maxilar    com hist&oacute;rico de trauma na regi&atilde;o de fundo de sulco maxilar esquerdo    e comissura da mucosa jugal esquerda atrav&eacute;s do contato do elemento dent&aacute;rio    33 com a pr&oacute;tese. N&atilde;o foi constatado nenhum h&aacute;bito delet&eacute;rio    associado. </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">O hist&oacute;rico    de sa&uacute;de mostrou estado geral de sa&uacute;de regular, sem doen&ccedil;as    de base ou h&aacute;bitos nocivos. Ao exame cl&iacute;nico foram observadas    les&otilde;es de aspecto tumoral, assintom&aacute;ticas, s&eacute;sseis, moles    &agrave; palpa&ccedil;&atilde;o, de crescimento exof&iacute;tico, recobertas    por mucosa de pigmenta&ccedil;&atilde;o marrom-acastanhada, localizadas em regi&atilde;o    jugal esquerda, adjacentes &agrave; comissura bucal (<a href="#fig1_09">Fig.    1. A e B</a>). De acordo com as caracter&iacute;sticas cl&iacute;nicas apresentadas    e a hist&oacute;ria de trauma local, o diagn&oacute;stico inicial fundamentou-se    no grupo dos processos proliferativos n&atilde;o-neopl&aacute;sicos (fibroma    traum&aacute;tico), sendo pouco considerada a inclus&atilde;o de amiloidose    como diagn&oacute;stico diferencial. </font>      <P align="center"><a name="fig1_09"></a><img src="/img/revistas/est/v49n1/f0109112.jpg" width="568" height="254">      
<P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    <br>   Nesse sentido, optou-se pela realiza&ccedil;&atilde;o de bi&oacute;psia excisional,    incluindo os dois s&iacute;tios da les&atilde;o na abordagem cir&uacute;rgica.    Em seguida as pe&ccedil;as cir&uacute;rgicas foram encaminhadas para estudo    an&aacute;tomo-patol&oacute;gico. O exame macrosc&oacute;pico dos esp&eacute;cimes    biopsiados mostrou les&otilde;es de tecido medindo 1,2 mm &#215; 0,5 mm &#215;    0,6 mm (menor) e 2,2 mm &#215; 0,8 mm &#215; 0,5 mm (maior) de colora&ccedil;&atilde;o    acinzentada, superf&iacute;cies lisas, consist&ecirc;ncia fibroel&aacute;stica    e forma ovalada. Ao corte observou-se superf&iacute;cie interna lisa e colora&ccedil;&atilde;o    enegrecida. </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">O diagn&oacute;stico    histopatol&oacute;gico inicial com a colora&ccedil;&atilde;o H.E (Easypath,    Erviegas, S&atilde;o Paulo, Brasil) revelou tecido conjuntivo subepitelial com    grande eosinofilia e conte&uacute;do amorfo (<a href="#fig2_09">Fig. 2.A</a>).    Em seguida foi realizada a colora&ccedil;&atilde;o com vermelho congo (Easypath,    Erviegas, S&atilde;o Paulo, Brasil), evidenciado birrefring&ecirc;ncia &agrave;    luz polarizada, com colora&ccedil;&atilde;o em verde, evidenciando conte&uacute;do    compat&iacute;vel com ac&uacute;mulo de prote&iacute;na amil&oacute;ide (<a href="#fig2_09">Fig.    2.B</a>). Buscando avaliar o envolvimento sist&ecirc;mico na doen&ccedil;a,    a paciente foi orientada a procurar acompanhamento m&eacute;dico. No entanto,    abandonou o tratamento e 6 meses ap&oacute;s o diagn&oacute;stico veio a &oacute;bito.</font>      ]]></body>
<body><![CDATA[<P align="center"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><a name="fig2_09"></a></b></font><img src="/img/revistas/est/v49n1/f0209112.jpg" width="571" height="273">      
<P>      <P>&nbsp;     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B><font size="3">DISCUSS&Atilde;O</font></B>    </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A amiloidose &eacute;    uma doen&ccedil;a rara de dif&iacute;cil diagn&oacute;stico, caracterizada por    ac&uacute;mulo extracelular de prote&iacute;nas fibrilares insol&uacute;veis    nos tecidos e &oacute;rg&atilde;os em resposta a varias altera&ccedil;&otilde;es    celulares e desordens inflamat&oacute;rias cr&ocirc;nicas.<SUP>8,11,12</SUP>    Prote&iacute;nas normais diante de algumas condi&ccedil;&otilde;es sist&ecirc;micas    de doen&ccedil;a formam fibrilas insol&uacute;veis precursoras de amil&oacute;ide.<SUP>13</SUP>    Dentre os precursores mais comuns est&atilde;o as imunoglobulinas monoclonais    relacionadas &agrave; prolifera&ccedil;&atilde;o de c&eacute;lulas monoclonais    no plasma, similar ao que acontece no mieloma m&uacute;ltiplo.<SUP>14</SUP>    </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A dificuldade no    diagn&oacute;stico precoce da amiloidose ocorre porque as primeiras manifesta&ccedil;&otilde;es    cl&iacute;nicas da doen&ccedil;a s&atilde;o inespec&iacute;ficas, e essa hip&oacute;tese    geralmente s&oacute; &eacute; aventada ap&oacute;s o acometimento de um &oacute;rg&atilde;o    em particular.<SUP>9</SUP> A busca pela amiloidose &eacute; iniciada com base    em alguma suspeita cl&iacute;nica e a bi&oacute;psia tecidual deve ser realizada    para o diagn&oacute;stico definitivo.<SUP>15</SUP> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Os estudos demonstram    que essa patologia ocorre com mais frequ&ecirc;ncia na s&eacute;tima d&eacute;cada    de vida e com ligeiro predom&iacute;nio do g&ecirc;nero masculino.<SUP>16</SUP>    No presente caso a paciente era do g&ecirc;nero feminino, apresentava hist&oacute;ria    de trauma local, evolu&ccedil;&atilde;o lenta da les&atilde;o, o que direcionou    a hip&oacute;tese diagn&oacute;stica inicial para as les&otilde;es do grupo    dos processos proliferativos n&atilde;o-neopl&aacute;sicos. A paciente n&atilde;o    procurou atendimento m&eacute;dico para realiza&ccedil;&atilde;o de exames do    quadro cl&iacute;nico geral, o que impossibilitou a avalia&ccedil;&atilde;o    do envolvimento sist&ecirc;mico da doen&ccedil;a. </font>     ]]></body>
<body><![CDATA[<P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">As manifesta&ccedil;&otilde;es    orais de amiloidose geralmente est&atilde;o representadas na forma de n&oacute;dulos,    p&aacute;pulas, placas e macroglossia. A cor das membranas mucosas das les&otilde;es    intra-orais pode variar entre amarelo, laranja, vermelho, azul e roxo.<SUP>3</SUP>    Na cavidade bucal, os dep&oacute;sitos de conte&uacute;do amil&oacute;ide s&atilde;o    raros e, quando presentes a l&iacute;ngua &eacute;, geralmente, o s&iacute;tio    anat&ocirc;mico mais envolvido, com 12 a 20 % dos casos,<SUP>17-21</SUP> seguido    do l&aacute;bio.<SUP>20,22</SUP> No caso apresentado a l&iacute;ngua n&atilde;o    apresentava altera&ccedil;&otilde;es anat&ocirc;micas e funcionais. As altera&ccedil;&otilde;es    encontravam-se na regi&atilde;o de mucosa jugal, &agrave; altura da comissura    bucal, na forma de n&oacute;dulos moles &agrave; palpa&ccedil;&atilde;o e colora&ccedil;&atilde;o    marrom-acastanhada. </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Uma vez estabelecida    a suspeita cl&iacute;nica de les&atilde;o intrabucal, deve-se confirmar o diagn&oacute;stico    com a bi&oacute;psia do tecido afetado e a avalia&ccedil;&atilde;o histopatol&oacute;gica.    No caso da amiloidose, a t&eacute;cnica utilizada &eacute; a de colora&ccedil;&atilde;o    pelo vermelho-congo, que foi introduzida por Bennhold em 1922. De acordo com    essa t&eacute;cnica, a subst&acirc;ncia amil&oacute;ide caracteriza-se por uma    colora&ccedil;&atilde;o vermelho-alaranjada, quando avaliada sob luz normal,    mas o diagn&oacute;stico &eacute; confirmado pela birrefring&ecirc;ncia de colora&ccedil;&atilde;o    esverdeada observada ao microsc&oacute;pio com luz polarizada.<SUP>15</SUP>    Os cortes histol&oacute;gicos observados no caso aqui apresentado, quando corados    em hematoxilina-eosina (H/E), mostraram material homog&ecirc;neo, eosinof&iacute;lico    e amorfo no tecido conectivo abaixo do epit&eacute;lio. A colora&ccedil;&atilde;o    com vermelho-congo mostrou birrefring&ecirc;ncia &agrave; luz polarizada, no    tom de verde, caracterizando presen&ccedil;a de conte&uacute;do amil&oacute;ide.    </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Na aus&ecirc;ncia    de sintomas cl&iacute;nicos, diversas regi&otilde;es dos tecidos orais t&ecirc;m    sido eleitas para realiza&ccedil;&atilde;o de bi&oacute;psia e detec&ccedil;&atilde;o    de deposi&ccedil;&atilde;o de conte&uacute;do amil&oacute;ide, no entanto, ainda    n&atilde;o h&aacute; consenso entre os estudiosos sobre o melhor local para    a remo&ccedil;&atilde;o de amostra tecidual.<SUP>2,15,23,24</SUP> L&iacute;ngua,<SUP>1,10,25    </SUP>gengiva,<SUP>2</SUP> gl&acirc;ndulas salivares menores<SUP>2,21</SUP>    e palato<SUP>3,8,11</SUP> s&atilde;o os principais s&iacute;tios reportados    como locais de identifica&ccedil;&atilde;o de conte&uacute;do amil&oacute;ide,    no entanto, h&aacute; uma inconsist&ecirc;ncia na literatura com rela&ccedil;&atilde;o    &agrave; melhor &aacute;rea tecidual bucal para detec&ccedil;&atilde;o de amil&oacute;ide.    Os estudos mais recentes tem demonstrado a import&acirc;ncia da utiliza&ccedil;&atilde;o    de gl&acirc;ndulas salivares menores na facilita&ccedil;&atilde;o da identifica&ccedil;&atilde;o    de amiloidose, tanto na forma prim&aacute;ria quanto secund&aacute;ria, podendo    ser de fundamental import&acirc;ncia no diagn&oacute;stico e progn&oacute;stico    do quadro de sa&uacute;de do paciente.<SUP>1,24,25-27</SUP> </font>     <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Sistemicamente    dep&oacute;sitos de amil&oacute;ide frequentemente acometem &oacute;rg&atilde;os    vitais causando s&iacute;ndromes nefr&oacute;ticas, insufici&ecirc;ncia renal    e card&iacute;aca, arritmias, hepatoesplenomegalia, hemorragias e infarto.<SUP>28</SUP>    Dentre essas complica&ccedil;&otilde;es, a maior causa de morbidade na amiloidose    sist&ecirc;mica &eacute; o acometimento renal.<SUP>29</SUP> </font>      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A resposta do organismo    aos tratamentos dos quadros de amiloidose &eacute; dif&iacute;cil e a sobrevida    &eacute; bastante reduzida em pacientes portadores de amiloidose sist&ecirc;mica.    Todo planejamento dever&aacute; encaminhar-se para dois objetivos: diminuir    a prote&iacute;na precursora do tipo amil&oacute;ide em quest&atilde;o e terapia    de suporte para o &oacute;rg&atilde;o acometido.<SUP>30</SUP> Dentre os tratamentos    existentes est&atilde;o a terapia padr&atilde;o, com altas doses de Melphalan    com transplante de c&eacute;lulas tronco e terapias adjuvantes: Talidomida +    Dexametasona e Bortezomid + Dexametasona.<SUP>31,32</SUP> Nesse caso, houve    encaminhamento da paciente a um cl&iacute;nico geral, para a realiza&ccedil;&atilde;o    de exames que pudessem indicar a manifesta&ccedil;&atilde;o da doen&ccedil;a    e avaliar as poss&iacute;veis complica&ccedil;&otilde;es em outros &oacute;rg&atilde;os.    No entanto a paciente apresentou sobrevida reduzida ap&oacute;s o diagn&oacute;stico,    falecendo ap&oacute;s 6 meses do diagn&oacute;stico, o que impossibilitou o    acompanhamento do caso. </font>     ]]></body>
<body><![CDATA[<P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Diante do exposto,    este relato mostrou um caso de diagn&oacute;stico de amiloidose na cavidade    bucal e confirmou a facilidade com que o material prot&eacute;ico &eacute; identificado    quando corado pelo vermelho congo e observado no microsc&oacute;pio com luz    polarizada. A identifica&ccedil;&atilde;o precoce com exames diagn&oacute;sticos    de rotina em les&otilde;es da cavidade bucal, o aconselhamento e acompanhamento    s&atilde;o de fundamental import&acirc;ncia para a sobrevida do paciente.</font>     <P>&nbsp;      <P>      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><B><font size="3">REFER&Ecirc;NCIAS    BIBLIGRAFICAS</font></B> </font>      <P>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">1. Van der Wall    RI, Van der Scheur MR, Huijgens PC, Starink TM, Van der Waal I. Amyloidosis    of the tongue as a paraneoplasic marker of plasma cell dyscrasia. Oral Surg    Oral Med Oral Pathol Oral Radiol Endod. 2002;94:444-7.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">2. Elad S, Czeminski    R, Fishman S, Keshet N, Druker S, Davidovich T, et al. Exceptional oral manifestations    of amyloid light chain protein (AL) systemic amyloidosis. Amyloid. 2010;17:27-31.        </font>      ]]></body>
<body><![CDATA[<!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">3. Aono J, Yamagata    K, Yoshida H. Local amyloidosis in the hard palate: a case report. Oral Maxillofac    Surg. 2009;13:119-22.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">4. Diniz REA, Sementilli    A, Dedivitis RA. Amiloidose. Revista M&eacute;dica Ana Costa. 1998;8:7-24.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">5. Xavier SD, Bussoloti    Filho I, Mulller H. Macroglossia decorrente de amiloidose sist&ecirc;mica: relato    de caso e revis&atilde;o de literatura. Revista Brasileira de Otorrinolaringologia.    2004;70(5):715-9.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">6. Asaumi JI, Yanagi    Y, Hisatomi M, Konouchi H, Kishi K. CT and MR imaging of localized amyloidosis.    European Journal of Radiology. 2001;39:83-7.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">7. Balatsouras    DG, Eliopoulos P, Assimakopoulos D. Primary local amyloidosis of the palate.    Otolaryngol Head Neck Surg. 2007;137:3489.     </font>      ]]></body>
<body><![CDATA[<!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">8. Pentenero M,    Bonino LD, Tomasini C. Localized oral amyloidosis of the palate. Amyloid. 2006;13:42-6.        </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">9. Rubin E. Patologia:    bases clinicopatol&oacute;gicas da medicina. Rio de Janeiro: Guanabara Koogan;    2006.    </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">10. Fahrner KS,    Black CC, Gosselin BJ. Localized amyloidosis of the tongue: a review. Am J Otolaryngol.    2004;25:186-9.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">11. Stoor P, Suronen    R, Lindqvist C. Local primary (AL) amyloidosis in the palate: a case report.    Int J Oral and Maxillofac Surg. 2004;33:402-3.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">12. Singh G, Kumari    N, Aggarwal A. Prevalence of subclinical amyloidosis in ankylosing spondylitis.    J Reumatol. 2007;34:371-3.     </font>      ]]></body>
<body><![CDATA[<!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">13. Sideras K,    Gertz MA. Amyloidosis. Adv Clin Chem. 2009;47:1-44.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">14. Stoopler ET,    Vogl DT, Alawi F. The presence of amyloid in abdominal and oral mucosal tissues    in patients initially diagnosed with multiple myeloma: a pilot study. OOOOE.    2010;111(3):326-32.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">15. Stoopler ET,    Sollecito TP, Chen SY. Amyloid deposition in the oral cavity: a retrospective    study and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol    Endod. 2003;95:674-80.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">16. Kerner MM,    Wang MB, Angier G, Calcaterra TC, Ward PH. Amyloidosis of the head and neck.    Arch Otolaryngol Head Neck Surg. 1995;121:778-82.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">17. Chatman LM,    Holder R, Mcginnis JP. Amyloidosis of the tongue. MDAJ. 1997;53(4):22-4.     </font>      ]]></body>
<body><![CDATA[<!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">18. Galv&atilde;o    HC, Le&atilde;o MD, Freitas RA. Amiloidose associada a mieloma m&uacute;ltiplo.    Rev Sa&uacute;de. 1997;11:18-21.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">19. Moroni AML,    Benavides AM, Retamal YE. Macroglosia y amiloidosis oculta/macroglossia as the    presenting symptom of amyloidosis. Rev M&eacute;d Chile. 2002;130:215-8.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">20. Andrade ESS,    Medeiros AMC, Silva Neto JC. Amiloidose sist&ecirc;mica com envolvimento da    cavidade oral. RGO. 2003;51(5).     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">21. Cengiz MI,    Wang H-L, Yildiz L. Oral involvement in a case of AA amyloidosis: a case report.    Journal of medical case reports. 2010;4:200-6.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">22. Mardinger O,    Rotemberg L, Chaushu G. Surgical management of macroglossia due primary amyloidosis.    Int J Oral Maxillofac Surg. 1999;28:129-31.     </font>      ]]></body>
<body><![CDATA[<!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">23. Stoopler ET,    Vogl DT, Stadmauer EA. Medical management update: multiple myeloma. Oral Surg    Oral Med Oral Pathol Oral Radiol Endod. 2007;103:1425-47.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">24. Stoopler ET,    Vogl DT, Alawi F. The presence of amyloid in abdominal and oral mucosal tissues    in patients initially diagnosed with multiple myeloma: a pilot study. OOOOE.    2011;111:326-32.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">25. Angiero F,    Seramondi R, Magistro S, Crippa R, Benedicenti S, Rizzardi C. Amyloid deposition    in the tongue: clinical and histophatological profile. Anticancer Res. 2010;30:3009-14.        </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">26. Finkel KJ,    Kolansky DM, Giorgadze T, Thailer E. Amyloid infiltration of the salivary glands    in the setting of primary systemic amyloidosis without multiple myeloma. Otolaryngol    Head Neck Surg. 2006;235:471-2.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">27. Amaral B, Coelho    T, Sousa A, Guimaraes A. Userfullness of labial salivary gland biopsy in familial    amyloid polyneurophathy Portuguese type. Amyloid. 2009;16:232-8.     </font>      ]]></body>
<body><![CDATA[<!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">28. Rocken C, Sletten    K. Amyloid in surgical pathology. Virchows Arch. 2003;443:3-16.    </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">29. Lachmann HJ,    Goodman HJB, Gilbertson JA. Natural history and outcome in systemic AA amyloidosis.    N Engl J Med. 2007;356:2361-71.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">30. Alambert CO,    Sarpi MO, Dedivitis RA, Alambert PA, Sementilli A, Arantes LP. Macroglossia    como primeira manifesta&ccedil;&atilde;o cl&iacute;nica da amiloidose prim&aacute;ria.    Rev Bras Reumatol. 2007;47(1):76-9.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">31. Cohen AD, Zhou    P, Chou J. Risk-adapted autologous stem cell transplantation with adjuvant dexamethasone    +/- thalidomide for systemic ligh-chain amyloidosis: results of a phase II trial.    Br J Haematol. 2007;139:224-33.     </font>      <!-- ref --><P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">32. Landau H, Hassoun    H, Bello C. Adjuvant bortezomib and dexamethasone following risk-adapted melphalan    and stem cell transplant in systemic AL amyloidosis. Amyloid. 2010;17(1):80.    </font>     ]]></body>
<body><![CDATA[<P>&nbsp;     <P>&nbsp;      <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Recibido: 10 de    diciembre de 2011.    <br>   Aprobado: 28 de diciembre de 2011.</font>     <P>&nbsp;     <P>&nbsp;     <P><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><i>Dra. Isabella    Lima Arrais Ribeiro. </i>Universidade Federal da Para&iacute;ba, Jo&atilde;o    Pessoa, Brasil. Correo electr&oacute;nico: <u><font color="#0000ff"><a href="mailto:isabella_arrais@yahoo.com.br">isabella_arrais@yahoo.com.br</a></font></u></font>       ]]></body><back>
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