<?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>0034-7299</journal-id>
<journal-title><![CDATA[Revista Brasileira de Otorrinolaringologia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Bras. Otorrinolaringol.]]></abbrev-journal-title>
<issn>0034-7299</issn>
<publisher>
<publisher-name><![CDATA[ABORL-CCF Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-72992009000200016</article-id>
<article-id pub-id-type="doi">10.1590/S0034-72992009000200016</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[O papel da biópsia intraoperatória de congelação para os nódulos tireoidianos]]></article-title>
<article-title xml:lang="en"><![CDATA[The role of intraoperative frozen sections for thyroid nodules]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almeida]]></surname>
<given-names><![CDATA[João Paulo Alves de]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Couto Netto]]></surname>
<given-names><![CDATA[Sergio Dias do]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha]]></surname>
<given-names><![CDATA[Rafael Pinto da]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pfuetzenreiter Jr]]></surname>
<given-names><![CDATA[Elio G.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dedivitis]]></surname>
<given-names><![CDATA[Rogério Aparecido]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
<xref ref-type="aff" rid="A02"/>
<xref ref-type="aff" rid="A03"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Fundação Lusíada Faculdade de Ciências Médicas ]]></institution>
<addr-line><![CDATA[Santos ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Hospital Ana Costa  ]]></institution>
<addr-line><![CDATA[Santos ]]></addr-line>
</aff>
<aff id="A03">
<institution><![CDATA[,Irmandade da Santa Casa da Misericórdia  ]]></institution>
<addr-line><![CDATA[Santos ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2009</year>
</pub-date>
<volume>75</volume>
<numero>2</numero>
<fpage>256</fpage>
<lpage>260</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0034-72992009000200016&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.br/scielo.php?script=sci_abstract&amp;pid=S0034-72992009000200016&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><self-uri xlink:href="http://www.scielo.br/scielo.php?script=sci_pdf&amp;pid=S0034-72992009000200016&amp;lng=en&amp;nrm=iso&amp;tlng=en"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[O valor da biópsia de congelação (BC) durante a tireoidectomia é controverso. OBJETIVO: Avaliar o papel da BC na conduta frente os nódulos tireoidianos. CASUÍSTICA E MÉTODO: Trabalho prospectivo de pacientes submetidos à cirurgia tireoidiana por doença nodular e com PAAF guiada por USG prévia em 2006. A BC intra-operatória foi classificada em benigna, maligna ou neoplasia folicular. PAAF, BC e exame de "parafina" foram comparados. RESULTADOS: À BC, 54% dos nódulos eram benignos, 30% neoplasia foliculares e 16% malignos. Todos os casos considerados benignos e malignos pela BC foram confirmados pelo exame de "parafina". Classificando as neoplásicas foliculares como "benignas" à BC, pois não possuem critério para indicação de tireoidectomia total, sensibilidade, especificidade, valores preditivos para os testes positivo e negativo e acurácia global foram, respectivamente, 69%, 100%, 100%, 91,5% e 77%. Casos classificados como "benignos" e "malignos" à PAAF foram confirmados pela BC e "parafina." Dentre os 42 casos de "neoplasia folicular" à PAAF, em um caso, a BC concluiu como carcinoma papilífero, em três, como benigno (confirmados pela "parafina"); e, em 38, manteve "padrão folicular", sendo 29 adenomas foliculares e nove carcinomas à "parafina". CONCLUSÕES: A BC somente está indicada nos casos cuja PAAF seja "neoplasia folicular."]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The role of intraoperative frozen sections (FS) during thyroidectomy is controversial. AIM: to evaluate the role of FS for thyroid nodules management. PATIENTS AND METHODS: All patients who had thyroid surgery for nodular disease and previous USG-guided FNAB in 2006 were prospectively analyzed. They underwent intraoperative FS evaluation, and the biopsy material was classified as benign, malignant or follicular neoplasm. FNAB, FS and paraffin sections were compared. RESULTS: Under the FS, 54% of the nodules were benign, 30% were follicular neoplasms, and 16% were malignant. All cases considered benign and malignant under the FS evaluation were confirmed through the histological "paraffin" analysis. Since it is not considered a definitive indication for total thyroidectomy, if the follicular neoplasms were classified as "benign" under the FS, their sensitivity, specificity, positive and negative predictive values and global diagnostic accuracy were 69%, 100%, 100%, 91,5% e 77%, respectively. Among the 42 cases classified as "follicular neoplasm" under the FNAB, in 1 case the FS conclusion was for papillary carcinoma, in 3 cases as benign (all confirmed through the "paraffin"); and 38 cases continued as "follicular pattern", being 29 follicular adenomas and 9 carcinomas through the "paraffin". CONCLUSION: The FS is only indicated when the FNAB reports "follicular neoplasm".]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[biópsia por agulha]]></kwd>
<kwd lng="pt"><![CDATA[neoplasias da glândula tireóide]]></kwd>
<kwd lng="pt"><![CDATA[secções congeladas]]></kwd>
<kwd lng="pt"><![CDATA[sensibilidade e especificidade]]></kwd>
<kwd lng="pt"><![CDATA[tireoidectomia]]></kwd>
<kwd lng="en"><![CDATA[fna]]></kwd>
<kwd lng="en"><![CDATA[thyroid neoplasms]]></kwd>
<kwd lng="en"><![CDATA[frozen sections]]></kwd>
<kwd lng="en"><![CDATA[sensitivity and specificity]]></kwd>
<kwd lng="en"><![CDATA[thyroidectomy]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><b>ARTIGO ORIGINAL</b></font></p>     <p>&nbsp;</p>     <p><font size="4" face="Verdana, Arial, Helvetica, sans-serif"><b><a name="topo"></a>O papel da bi&oacute;psia intraoperat&oacute;ria de congela&ccedil;&atilde;o para os n&oacute;dulos tireoidianos</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><b>Jo&atilde;o Paulo Alves de Almeida<sup>I</sup>; Sergio Dias do Couto Netto<sup>II</sup>; Rafael Pinto da Rocha<sup>III</sup>; Elio G. Pfuetzenreiter Jr.<sup>IV</sup>; Rog&eacute;rio Aparecido Dedivitis<sup>V</sup></b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><sup>I</sup>Acad&ecirc;mico da Faculdade de Ci&ecirc;ncias M&eacute;dicas da Funda&ccedil;&atilde;o Lus&iacute;ada, Santos    <br> <sup>II</sup>Acad&ecirc;mico da Faculdade de Ci&ecirc;ncias M&eacute;dicas da Funda&ccedil;&atilde;o Lus&iacute;ada, Santos    <br> <sup>III</sup>Acad&ecirc;mico da Faculdade de Ci&ecirc;ncias M&eacute;dicas da Funda&ccedil;&atilde;o Lus&iacute;ada, Santos    <br> <sup>IV</sup>Residente de Cirurgia de Cabe&ccedil;a e Pesco&ccedil;o do Hospital Ana Costa, Santos    ]]></body>
<body><![CDATA[<br> <sup>V</sup>Doutor em Medicina pelo Curso de P&oacute;s-Gradua&ccedil;&atilde;o em Otorrinolaringologia e Cirurgia de Cabe&ccedil;a e Pesco&ccedil;o da UNIFESP - Escola Paulista de Medicina. M&eacute;dico.    Disciplina de Cirurgia de Cabe&ccedil;a e Pesco&ccedil;o da Faculdade de Ci&ecirc;ncias M&eacute;dicas da Funda&ccedil;&atilde;o Lus&iacute;ada; Servi&ccedil;o de Cirurgia de Cabe&ccedil;a e Pesco&ccedil;o do Hospital Ana Costa,    Santos; e Servi&ccedil;o de Cirurgia de Cabe&ccedil;a e Pesco&ccedil;o da Irmandade da Santa Casa da Miseric&oacute;rdia de Santos</font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><a href="#end">Endere&ccedil;o para correspond&ecirc;ncia</a></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p> <hr size="1" noshade>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><b>RESUMO</b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">O valor da bi&oacute;psia de congela&ccedil;&atilde;o (BC) durante a tireoidectomia &eacute; controverso.    <br>  <b>OBJETIVO:</b> Avaliar o papel da BC na conduta frente os n&oacute;dulos tireoidianos.    <br>  <b>CASU&Iacute;STICA E M&Eacute;TODO:</b> Trabalho prospectivo de pacientes submetidos &agrave; cirurgia tireoidiana por doen&ccedil;a nodular e com PAAF guiada por USG pr&eacute;via em 2006. A BC intra-operat&oacute;ria foi classificada em benigna, maligna ou neoplasia folicular. PAAF, BC e exame de "parafina" foram comparados.    <br>  <b>RESULTADOS: </b>&Agrave; BC, 54% dos n&oacute;dulos eram benignos, 30% neoplasia foliculares e 16% malignos. Todos os casos considerados benignos e malignos pela BC foram confirmados pelo exame de "parafina". Classificando as neopl&aacute;sicas foliculares como "benignas" &agrave; BC, pois n&atilde;o possuem crit&eacute;rio para indica&ccedil;&atilde;o de tireoidectomia total, sensibilidade, especificidade, valores preditivos para os testes positivo e negativo e acur&aacute;cia global foram, respectivamente, 69%, 100%, 100%, 91,5% e 77%. Casos classificados como "benignos" e "malignos" &agrave; PAAF foram confirmados pela BC e "parafina." Dentre os 42 casos de "neoplasia folicular" &agrave; PAAF, em um caso, a BC concluiu como carcinoma papil&iacute;fero, em tr&ecirc;s, como benigno (confirmados pela "parafina"); e, em 38, manteve "padr&atilde;o folicular", sendo 29 adenomas foliculares e nove carcinomas &agrave; "parafina".    <br>  <b>CONCLUS&Otilde;ES:</b> A BC somente est&aacute; indicada nos casos cuja PAAF seja "neoplasia folicular." </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><b>Palavras-chave:</b> bi&oacute;psia por agulha, neoplasias da gl&acirc;ndula    tire&oacute;ide, sec&ccedil;&otilde;es congeladas, sensibilidade e especificidade,    tireoidectomia. </font></p>   <hr size="1" noshade>       <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana, Arial, Helvetica, sans-serif"><b>INTRODU&Ccedil;&Atilde;O </b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"></b>A pun&ccedil;&atilde;o aspirativa por agulha fina (PAAF) &eacute; um m&eacute;todo pr&eacute;-operat&oacute;rio de alta acur&aacute;cia na elucida&ccedil;&atilde;o diag</b>n&oacute;stica dos n&oacute;dulos tireoidianos na detec&ccedil;&atilde;o de c&acirc;ncer<sup>1</sup>, sendo a chamada "neoplasia folicular" ainda um dilema<sup>2</sup>. O valor da bi&oacute;psia intra-operat&oacute;ria de congela&ccedil;&atilde;o ainda permanece controverso quanto ao seu potencial de ajudar o cirurgi&atilde;o a decidir entre realizar a hemitireoidectomia ou a tireoidectomia total. O m&eacute;todo potencialmente pode evitar uma segunda interven&ccedil;&atilde;o para remo&ccedil;&atilde;o do lobo contralateral se o esp&eacute;cime cir&uacute;rgico revelar malignidade no exame histopatol&oacute;gico inclu&iacute;do em parafina e, alternativamente, pode evitar uma tireoidectomia total desnecess&aacute;ria, que levar&aacute; o paciente ao uso permanente de reposi&ccedil;&atilde;o da levotiroxina e aumenta a chance de hipoparatireoidismo e les&atilde;o de nervo lar&iacute;ngeo recorrente<sup>3</sup>. </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">O objetivo desse estudo &eacute; avaliar o valor da bi&oacute;psia de congela&ccedil;&atilde;o na tomada de decis&atilde;o frente &agrave; doen&ccedil;a nodular da gl&acirc;ndula tire&oacute;idea. </font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana, Arial, Helvetica, sans-serif"><b>CASU&Iacute;STICA E M&Eacute;TODOS </b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Durante o ano de 2006, em estudo prospectivo, 126 pacientes foram consecutivamente submetidos &agrave; tireoidectomia por doen&ccedil;a nodular de tire&oacute;ide, sendo os n&oacute;dulos previamente avaliados por PAAF guiada por USG. Todos os pacientes foram submetidos ao ato de PAAF pelos mesmos ultrassonografista e patologista e a interpreta&ccedil;&atilde;o citopatol&oacute;gica foi realizada pelo mesmo patologista que participou da coleta do material. Todos os pacientes, durante o ato cir&uacute;rgico, logo ap&oacute;s a retirada do esp&eacute;cime, foram submetidos a exame intra-operat&oacute;rio de congela&ccedil;&atilde;o. O diagn&oacute;stico histopatol&oacute;gico do material inclu&iacute;do em parafina estava dispon&iacute;vel. O presente estudo foi aprovado pelo Comit&ecirc; de &Eacute;tica em Pesquisa de institui&ccedil;&atilde;o local. </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">A PAAF foi realizada atrav&eacute;s do uso de seringa pl&aacute;stica de 20mL e o di&acirc;metro da agulha empregada foi de 21 gauge. A USG foi realizada por transdutor de 10MHz e um m&iacute;nimo de tr&ecirc;s aspira&ccedil;&otilde;es foi normalmente utilizado sem anestesia local. Na presen&ccedil;a de n&oacute;dulos mistos, o componente l&iacute;quido era inicialmente esvaziado, repetindo-se a pun&ccedil;&atilde;o a seguir. Ambos os materiais coletados eram avaliados pelo patologista, sendo o l&iacute;quido previamente centrifugado. Todo o material obtido foi fixado em &aacute;lcool absoluto e corado por Papanicolaou ou H-E. O exame de congela&ccedil;&atilde;o consistiu em uma ou duas sec&ccedil;&otilde;es representativas da &aacute;rea mais propensa a apresentar invas&atilde;o capsular. </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Os esp&eacute;cimes citopatol&oacute;gicos foram classificados em inconclusivos, benigno (n&oacute;dulo col&oacute;ide, cisto ou tireoidite), maligno e suspeito de malignidade (esp&eacute;cimes cuja defini&ccedil;&atilde;o de malignidade n&atilde;o podia ser feita, apresentando um padr&atilde;o "folicular"). Considerou-se padr&atilde;o folicular a presen&ccedil;a de popula&ccedil;&otilde;es de c&eacute;lulas epiteliais monom&oacute;rficas ou levemente pleom&oacute;rficas, frequentemente agrupadas em microfol&iacute;culos ou em massas sinciciais e mostrando n&uacute;cleos com atipia ou aspecto eosinof&iacute;lico de c&eacute;lulas de Hurthle. Os esp&eacute;cimes cir&uacute;rgicos foram classificados, quanto ao exame de congela&ccedil;&atilde;o, em inconclusivos, benigno, maligno e padr&atilde;o "folicular". </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">O exame de congela&ccedil;&atilde;o foi comparado com o histopatol&oacute;gico ("parafina"), considerado padr&atilde;o-ouro. Casos verdadeiros-positivos e verdadeiros-negativos foram definidos com base na confirma&ccedil;&atilde;o histopatol&oacute;gica dos achados da congela&ccedil;&atilde;o, respectivamente, de carcinoma ou les&atilde;o benigna. Assim, os resultados discordantes foram classificados como falsos-positivos e falsos-negativos. Sensibilidade, especificidade, os valores preditivos dos testes positivo e negativo e a acur&aacute;cia foram, ent&atilde;o, calculados. </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Em seguida, os achados da PAAF foram comparados com os do exame de congela&ccedil;&atilde;o e o impacto de cada um na defini&ccedil;&atilde;o da conduta cir&uacute;rgica (tireoidectomia parcial ou total). </font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana, Arial, Helvetica, sans-serif"><b>RESULTADOS </b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"></b>Compara&ccedil;&atilde;o da BC com o exame histopatol&oacute;gico da "parafina" (padr&atilde;o-ouro). </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Na presente amostra, n&atilde;o houve BC considerada inconclusiva: 68 n&oacute;dulos (54%) eram benignos, 38 (30%) eram neoplasias foliculares (devendo-se aguardar o resul</b>tado da "parafina" para estudo detalhado de invas&atilde;o de c&aacute;psula e vascular) e 20 (16%) eram malignos. A <a href="#fig1">Figura 1</a> compara os achados da BC com os histopatol&oacute;gicos ("parafina"). </font></p>     <p><a name="fig1"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/rboto/v75n2/a16fig01.gif"></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Dentre os 20 casos considerados malignos &agrave; BC, dois eram carcinoma medular de tire&oacute;ide e todos os demais eram carcinoma papil&iacute;fero. Dentre os casos classificados como padr&atilde;o folicular (38), 29 foram benignos (adenomas foliculares) e nove, malignos, sendo dois casos de carcinoma folicular e sete de carcinoma papil&iacute;fero, variante folicular. </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Se n&atilde;o forem consideradas as pun&ccedil;&otilde;es de padr&atilde;o folicular, os valores preditivos para os testes negativo (pun&ccedil;&atilde;o benigna) e positivo (pun&ccedil;&atilde;o maligna) s&atilde;o de 100%. Entretanto, sendo a BC suspeita (padr&atilde;o folicular) uma indica&ccedil;&atilde;o para n&atilde;o realizar a tireoidectomia total, por falta de crit&eacute;rios para concluir-se por malignidade, se forem classificadas como sendo "benignas", encontra-se uma nova disposi&ccedil;&atilde;o (<a href="#fig2">Figura 2</a>). </font></p>     <p><a name="fig2"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/rboto/v75n2/a16fig02.gif"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Nessa nova disposi&ccedil;&atilde;o, considerando os casos de padr&atilde;o folicular (aguardar "parafina") como "benignos" &agrave; BC, encontraram-se os seguintes valores: sensibilidade = 69%; especificidade = 100%; valor preditivo para o teste positivo = 100%; valor preditivo para o teste negativo = 91,5%; e acur&aacute;cia = 77%. </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><b>Compara&ccedil;&atilde;o da BC com a PAAF </b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Todos os casos haviam sido submetidos &agrave; PAAF no per&iacute;odo pr&eacute;-operat&oacute;rio. Assim, dos 126 n&oacute;dulos puncionados, 65 (51,6%) eram benignos, 42 (33,3%) apresentaramse como neoplasia folicular e 19 (15,1%) eram malignos. Cruzando tais dados com aqueles obtidos ao exame de BC, notamos o seguinte: </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">1) os 19 casos caracterizados como "malignos" &agrave; PAAF foram confirmados pela BC e pela "parafina"; </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">2) os 65 casos caracterizados com "benignos" &agrave; PAAF foram confirmados pela BC e pela "parafina"; </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">3) considerando os 42 casos que vieram como "neoplasia folicular" &agrave; PAAF, tivemos: </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">- em um caso, a BC encontrou os crit&eacute;rios para definir como sendo carcinoma papil&iacute;fero (confirmado pela "parafina"); </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">- em tr&ecirc;s casos, a BC encontrou os crit&eacute;rios para definir como sendo benigno (confirmado pela "parafina"); </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">- nos demais 38 casos, a BC manteve a impress&atilde;o de "padr&atilde;o folicular", sugerindo aguardar-se o resultado da "parafina"; destes, &agrave; "parafina", 29 vieram como adenomas foliculares e nove vieram como carcinomas, sendo dois carcinomas foliculares e sete carcinomas papil&iacute;fero de variante folicular. </font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana, Arial, Helvetica, sans-serif"><b>DISCUSS&Atilde;O </b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">A <a href="/img/revistas/rboto/v75n2/a16tab01.gif">Tabela 1</a> mostra a revis&atilde;o referente aos resultados obtidos com a PAAF na avalia&ccedil;&atilde;o de n&oacute;dulos tireoidianos<sup>4-8</sup>. </font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Nossos achados mostram-se compat&iacute;veis com os da literatura, com boa acur&aacute;cia, contudo, tamb&eacute;m apresenta falha quando diante do chamado "padr&atilde;o folicular". Assim, especificidade e valor preditivo do teste positivo s&atilde;o elevados. Encontramos 100% para ambos, o que foi compat&iacute;vel com boa parte da literatura. Isso significa que, quando o m&eacute;todo da BC aponta tratar-se de c&acirc;ncer, tal interpreta&ccedil;&atilde;o &eacute; altamente confi&aacute;vel. Os resultados de "padr&atilde;o folicular" v&ecirc;m com a recomenda&ccedil;&atilde;o, por parte do patologista, de aguardar-se o resultado da "parafina", pois n&atilde;o foram encontrados os crit&eacute;rios necess&aacute;rios para fecharse o diagn&oacute;stico de malignidade, n&atilde;o se recomendando a tireoidectomia total sistematicamente. Com isso, na Tabela 2x2, tal conclus&atilde;o foi categorizada como "benigna" e isso justifica a sensibilidade de 69% em nossa amostra. J&aacute; quando se considera a PAAF, o achado de "neoplasia folicular" &eacute; crit&eacute;rio para indica&ccedil;&atilde;o cir&uacute;rgica, assim, deve ser categorizada como "maligna"<sup>1</sup>. </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">Houve uma forte correla&ccedil;&atilde;o entre os achados de benignidade e tamb&eacute;m de malignidade entre os m&eacute;todos da PAAF guiada por ultrassonografia, BC e histopatol&oacute;gico inclu&iacute;do em "parafina" (padr&atilde;o-ouro). Assim, quando a PAAF mostra tratar-se de "benigno" ou de "maligno", a BC n&atilde;o acrescentou informa&ccedil;&atilde;o. J&aacute; dentre os 42 casos de "neoplasia folicular" &agrave; PAAF, em um a BC encontrou crit&eacute;rios de malignidade, com impacto na decis&atilde;o terap&ecirc;utica e, em tr&ecirc;s, definiu-se tratar-se de les&atilde;o benigna. </font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana, Arial, Helvetica, sans-serif"><b>CONCLUS&Atilde;O </b></font></p>     <p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">A BC somente est&aacute; indicada nos casos cuja PAAF seja "neoplasia folicular." </font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana, Arial, Helvetica, sans-serif"><b>REFER&Ecirc;NCIAS BIBLIOGR&Aacute;FICAS </b></font></p>     <!-- ref --><p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">1. Rocha RP, Almeida JPA, Couto Netto SD, Silva RABN, Pfuetzenreiter EG, Dedivitis RA. Pun&ccedil;&atilde;o aspirativa por agulha fina guiada por ultrasonografia para n&oacute;dulos tireoidianos. Rev Bras Cir Cabe&ccedil;a Pesco&ccedil;o. 2007;36(4):186-8.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=6324460&pid=S0034-7299200900020001600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>     <!-- ref --><p><font size="2" face="Verdana, Arial, Helvetica, sans-serif">2. Callcut RA, Selvaggi SM, Mack E, Ozgul O, Warner T, Chen H. The utility of frozen section evaluation for follicular thyroid lesions. Ann Surg Oncol. 2004;11(1):94-8.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=6324462&pid=S0034-7299200900020001600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font></p>     ]]></body>
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