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  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</journal-id>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v3">gVsvjKyJYjCRZ5tVNCxgNyK</article-id>
      <article-id pub-id-type="publisher-id" specific-use="scielo-v2">S0066-782X2017000900264</article-id>
      <article-id pub-id-type="doi">10.5935/abc.20170128</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Clinicoradiological Session</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Case 5 / 2017 - Scimitar Syndrome and Pulmonary Sequestration in Natural Progression in a 68-Year-Old Woman</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Atik</surname>
            <given-names>Edmar</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="corresp" rid="c1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Gudi&#241;o</surname>
            <given-names>&#193;lvaro Francisco</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Montemor</surname>
            <given-names>Marcelo Lopes</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff id="aff1">
          <institution content-type="orgname">Universidade de S&#227;o Paulo</institution>
          <institution content-type="orgdiv1">Hospital das Cl&#237;nicas</institution>
          <institution content-type="orgdiv2">Instituto do Cora&#231;&#227;o</institution>
          <country country="BR">Brazil</country>
          <institution content-type="original">Instituto do Cora&#231;&#227;o do Hospital das Cl&#237;nicas da Universidade de S&#227;o Paulo, S&#227;o Paulo, SP - Brazil</institution>
          <institution content-type="normalized">Universidade de S&#227;o Paulo</institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c1"><bold>Mailing Address: Edmar Atik</bold> &#8226; Rua Dona Adma Jafet, 74, conj.73, Bela Vista. Postal Code 01308-050, S&#227;o Paulo, SP - Brazil E-mail: <email>conatik@incor.usp.br</email>
				</corresp>
      </author-notes>
      <pub-date pub-type="epub-ppub">
        <month>09</month>
        <year>2017</year>
      </pub-date>
      <volume>109</volume>
      <issue>3</issue>
      <fpage>264</fpage>
      <lpage>265</lpage>
      <permissions>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/" xml:lang="en">
          <license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="en">
        <title>Palavras-chave</title>
        <kwd>Heart Defects, Congenital</kwd>
        <kwd>Scimitar Syndrome</kwd>
        <kwd>Heart Septal Defects, Atrial</kwd>
        <kwd>Pulmonary Sequestration</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec>
      <title>Clinical data</title>
      <p>Tiredness and palpitations during physical work for approximately 20 years, without progression. Some episodes of small-volume hemoptysis during this period. Taking enalapril for hypertension and metformin for diabetes.</p>
      <p>Physical examination: good general condition, eupneic, acyanotic. Weight: 56 Kg, Height: 160 cm, blood pressure (right arm): 140/90 mm Hg, HR: 95 bpm, oxygen saturation = 99%.</p>
      <p>Precordium: apex beat was not palpable, without systolic impulses. Normophonetic heart sounds, and no heart murmurs. Liver was not palpable and lungs were clear.</p>
      <sec>
        <title>Complementary tests</title>
        <p><bold>Electrocardiography:</bold> sinus rhythm, HR 113 bpm, with no signs of chamber overload, PR: 0.12, QRS: 0.89; AP = +60o, AQRS = +40o, AT = +60o (<xref ref-type="fig" rid="f1">Figure 1A</xref>).</p>
        <p>
          <fig id="f1">
            <label>Figure 1</label>
            <caption>
              <title>Normal electrocardiogram (A). Chest X-ray (B) In the posteroanterior view, normal-sized heart, right lung hypoplasia and scimitar-shaped vein (arrow). Computed tomography angiography shows right pulmonary vein in the shape of a scimitar (arrow) draining to inferior vena cava (C) and size contrast between the pulmonary arteries (D). PT: pulmonary trunk; RPA: right pulmonary artery; left pulmonary artery (LPA).</title>
            </caption>
            <graphic xlink:href="1678-4170-abc-109-03-0264-70128-gf01.jpg"/></fig>
        </p>
        <p><bold>Chest radiography:</bold> normal-sized heart, with deviation to the right due to pulmonary hypoplasia of the right lung, which was compensated by the left lung. In the right lower lobe, there was a vascular image with the shape of a scimitar (<xref ref-type="fig" rid="f1">Figure 1B</xref>).</p>
        <p>Echocardiography: normal cardiac chambers, except for mild biatrial enlargement, normal biventricular function. Aorta = 32 mm, LA = 34, RV = 28, LV = 53, septum = posterior wall = 10 mm, LVEF = 68%. There was a very low blood flow from the LA to the RA.</p>
        <p><bold>Chest computed tomography:</bold><italic>situs solitus</italic> and levocardia, and heart in dextroposition. Anomalous pulmonary venous connection at right, with drainage of pulmonary veins through a venous collector (largest diameter 11 x 10 mm), that descended to the suprahepatic segment of the inferior vena cava (scimitar) (<xref ref-type="fig" rid="f1">Figure 1C</xref>).</p>
        <p>Normal pulmonary trunk (22 mm). Dilated left pulmonary artery (27 mm) with increased pulmonary artery-to-bronchus ratio, which may indicate either redirection of the flow or increased pulmonary pressure. Right pulmonary artery was tortuous and hypoplastic, measuring 10 mm in its proximal portion and 9mm in its medial third (<xref ref-type="fig" rid="f1">Figure 1D</xref>).</p>
        <p>Enlarged branch (13 x 13 mm) from the abdominal aorta at the level of the celiac trunk with ascending course to the posterior-inferior region of the right lung ("aneurysmatic" pulmonary sequestration).</p>
        <p>Hypoplastic right lung with compensation by the left lung.</p>
        <p>Posterolateral diaphragmatic discontinuity, suggestive of Bochdalek hernia.</p>
      </sec>
      <sec>
        <title>Clinical diagnosis</title>
        <p>Scimitar syndrome with right lung hypoplasia and pulmonary sequestration of the right inferior lobe.</p>
      </sec>
      <sec>
        <title>Clinical reasoning</title>
        <p>Patient with few symptoms, without a definite clinical diagnosis, due to absence of signs suggestive of congenital heart disease and normal ECG results. Chest radiography has become paramount in the diagnosis of scimitar syndrome, which is confirmed by angiotomography. The few clinical manifestations of the disease associated with its long natural progression resulted from the small interatrial communication and low pulmonary blood flow at right.</p>
      </sec>
    </sec>
    <sec>
      <title>Differential diagnosis</title>
      <p>Congenital heart diseases with few manifestations may have the same long term progress, including acyanogenic heart diseases with low blood flow from the left to the right, such as interatrial communication, interventricular communication, and patent ductus arteriosus (PDA).</p>
      <sec>
        <title>Management</title>
        <p>Due to few clinical and hemodynamic manifestations of the pulmonary venous abnormality, expectant management was performed.</p>
      </sec>
      <sec>
        <title>Comments</title>
        <p>Scimitar syndrome consists in an anomalous venous drainage of the right lung to the inferior vena cava associated with right lung hypoplasia, anomalies of the bronchial tree, dextrocardia, systemic arterial blood supply coming from the abdominal aorta. In one third of the cases, congenital heart diseases are concomitant, such as ventricular/atrial septal defect, PDA, coarctation of the aorta, and Tetralogy of Fallot. Other congenital disorders that may be associated with this syndrome are right diaphragmatic hernia, spinal abnormalities, hypospadias, duplicated ureter and double urethra.<xref ref-type="bibr" rid="B1">1</xref>
				</p>
        <p>Scimitar syndrome was first described by Cooper and Chassinat in 1836 and its first surgical treatment was described by Kirkling et al.<xref ref-type="bibr" rid="B1">1</xref> in 1956.</p>
        <p>The syndrome was classified by Depuis et al.<xref ref-type="bibr" rid="B2">2</xref> into two distinct presentations: infantile and adult. The infantile form affects children younger than one year; it usually progresses to heart failure and pulmonary hypertension, with a worse prognosis. The adult form affects both children and adults; it is usually asymptomatic and has a better prognosis.<xref ref-type="bibr" rid="B1">1</xref><sup>,</sup><xref ref-type="bibr" rid="B2">2</xref>
				</p>
        <p>The name 'scimitar' (the Turkish sword) is symbolic, described by Neil et al. in 1960 due to the radiographic image showing the oriental sabre appearance of the anomalous, vertical descending pulmonary vein in the right lung.<xref ref-type="bibr" rid="B1">1</xref>
				</p>
        <p>Most of the cases reported in the literature undergo surgical repair from early years to youth, and rarely in adult ages, as described in a 66-year-old patient.<xref ref-type="bibr" rid="B3">3</xref>
				</p>
      </sec>
    </sec>
  </body>
  <back>
    <ref-list>
      <title>References</title>
      <ref id="B1">
        <label>1</label>
        <mixed-citation>1 Ci&#231;ek S, Arslan AH, Ugurlucan M, Yildiz Y, Ay S. Scimitar syndrome: the curved Turkish sabre. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu. 2014;17(1):56-61. doi: 10.1053/j.pcsu.2014.01.003.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Ci&#231;ek</surname>
              <given-names>S</given-names>
            </name>
            <name>
              <surname>Arslan</surname>
              <given-names>AH</given-names>
            </name>
            <name>
              <surname>Ugurlucan</surname>
              <given-names>M</given-names>
            </name>
            <name>
              <surname>Yildiz</surname>
              <given-names>Y</given-names>
            </name>
            <name>
              <surname>Ay</surname>
              <given-names>S</given-names>
            </name>
          </person-group>
          <article-title>Scimitar syndrome: the curved Turkish sabre</article-title>
          <source>Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu</source>
          <year>2014</year>
          <volume>17</volume>
          <issue>1</issue>
          <fpage>56</fpage>
          <lpage>61</lpage>
          <pub-id pub-id-type="doi">10.1053/j.pcsu.2014.01.003</pub-id>
        </element-citation>
      </ref>
      <ref id="B2">
        <label>2</label>
        <mixed-citation>2 Brink J, Yong MS, d'Udekem Y, Weintraub RG, Brizard CP, Konstantinov IE. Surgery for scimitar syndrome: the Melbourne experience. Interact Cardiovasc Thorac Surg. 2015;20(1):31-4. doi: 10.1093/icvts/ivu319. Epub 2014 Oct 6.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Brink</surname>
              <given-names>J</given-names>
            </name>
            <name>
              <surname>Yong</surname>
              <given-names>MS</given-names>
            </name>
            <name>
              <surname>d'Udekem</surname>
              <given-names>Y</given-names>
            </name>
            <name>
              <surname>Weintraub</surname>
              <given-names>RG</given-names>
            </name>
            <name>
              <surname>Brizard</surname>
              <given-names>CP</given-names>
            </name>
            <name>
              <surname>Konstantinov</surname>
              <given-names>IE</given-names>
            </name>
          </person-group>
          <article-title>Surgery for scimitar syndrome: the Melbourne experience</article-title>
          <source>Interact Cardiovasc Thorac Surg</source>
          <year>2015</year>
          <volume>20</volume>
          <issue>1</issue>
          <fpage>31</fpage>
          <lpage>34</lpage>
          <pub-id pub-id-type="doi">10.1093/icvts/ivu319</pub-id>
          <day>06</day>
          <month>10</month>
          <year>2014</year>
        </element-citation>
      </ref>
      <ref id="B3">
        <label>3</label>
        <mixed-citation>3 Casha AR<sup>1</sup>, Sulaiman M, Cale AJ. Repair of adult Scimitar syndrome with an intra-atrial conduit. Interact Cardiovasc Thorac Surg. 2003 Jun;2(2):128-30. Doi:10.1016/S1569-9293(02)00120-2.</mixed-citation>
        <element-citation publication-type="journal">
          <person-group person-group-type="author">
            <name>
              <surname>Casha</surname>
              <given-names>AR1</given-names>
            </name>
            <name>
              <surname>Sulaiman</surname>
              <given-names>M</given-names>
            </name>
            <name>
              <surname>Cale</surname>
              <given-names>AJ</given-names>
            </name>
          </person-group>
          <article-title>Repair of adult Scimitar syndrome with an intra-atrial conduit</article-title>
          <source>Interact Cardiovasc Thorac Surg.</source>
          <month>06</month>
          <year>2003</year>
          <volume>2</volume>
          <issue>2</issue>
          <fpage>128</fpage>
          <lpage>130</lpage>
          <pub-id pub-id-type="doi">10.1016/S1569-9293(02)00120-2</pub-id>
        </element-citation>
      </ref>
    </ref-list>
  </back>
  <sub-article article-type="translation" id="s1" xml:lang="pt">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Correla&#231;&#227;o Cl&#237;nico-radiogr&#225;fica</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Caso 5 / 2017 - S&#237;ndrome da Cimitarra e Sequestro Pulmonar em Evolu&#231;&#227;o Natural de Mulher com 68 Anos de Idade</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Atik</surname>
            <given-names>Edmar</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="corresp" rid="c2"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Gudi&#241;o</surname>
            <given-names>&#193;lvaro Francisco</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Montemor</surname>
            <given-names>Marcelo Lopes</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff id="aff2">
          <institution content-type="original">Instituto do Cora&#231;&#227;o do Hospital das Cl&#237;nicas da Universidade de S&#227;o Paulo, S&#227;o Paulo, SP - Brasil </institution>
        </aff>
      </contrib-group>
      <author-notes>
        <corresp id="c2"><bold>Correspond&#234;ncia: Edmar Atik</bold> &#8226; Rua Dona Adma Jafet, 74, conj.73, Bela Vista. CEP 01308-050, S&#227;o Paulo, SP - Brasil. E-mail: <email>conatik@incor.usp.br</email>
				</corresp>
      </author-notes>
      <kwd-group xml:lang="pt">
        <title>Palavras-chave</title>
        <kwd>Cardiopatias Cong&#234;nitas</kwd>
        <kwd>S&#237;ndrome de Cimitarra</kwd>
        <kwd>Comunica&#231;&#227;o Interatrial</kwd>
        <kwd>Sequestro Pulmonar</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <sec>
        <title>Dados cl&#237;nicos</title>
        <p>Cansa&#231;o aos grandes esfor&#231;os, acompanhado de palpita&#231;&#245;es, iniciados h&#225; cerca de 20 anos, sem progress&#227;o. Epis&#243;dios esparsos de hemoptise de pequena monta neste per&#237;odo. Em uso de enalapril para tratamento de hipertens&#227;o arterial e Metformina para diabetes.</p>
        <p>Exame f&#237;sico: bom estado geral, eupneica, acian&#243;tica. Peso: 56 Kg, Alt.: 160 cm, PA (membro superior direito): 140x90 mm Hg, FC: 95 bpm, SO2 99%.</p>
        <p>Prec&#243;rdio: <italic>ictus cordis</italic> n&#227;o palpado, sem impuls&#245;es sist&#243;licas. Bulhas card&#237;acas normofon&#233;ticas, sem sopros card&#237;acos. F&#237;gado n&#227;o palpado e pulm&#245;es limpos.</p>
        <sec>
          <title>Exames Complementares</title>
          <p><bold>Eletrocardiograma:</bold> ritmo sinusal, FC 113bpm, sem sobrecargas cavit&#225;rias, PR: 0,12, QRS: 0,89; AP = +60<sup>o</sup>, AQRS = +40<sup>o</sup>, AT = +60<sup>o</sup> (<xref ref-type="fig" rid="f2">Figura 1A</xref>).</p>
          <p>
            <fig id="f2">
              <label>Figura 1</label>
              <caption>
                <title>Eletrocardiograma normal (A). Radiografia de t&#243;rax (B) em p&#243;stero-anterior salienta &#225;rea card&#237;aca de tamanho normal, &#224; direita, hipoplasia pulmonar direita e estrutura vascular em forma de Cimitarra (seta). Angiotomografia salienta a veia pulmonar direita em forma de Cimitarra (seta), drenando na veia cava inferior (C) e o contraste de tamanho entre as art&#233;rias pulmonares (D). TP: tronco pulmonar; APD: art&#233;ria pulmonar direita; APE: art&#233;ria pulmonar esquerda.</title>
              </caption>
              <graphic xlink:href="1678-4170-abc-109-03-0264-70128-gf01-pt.jpg"/></fig>
          </p>
          <p><bold>Radiografia de t&#243;rax:</bold> &#225;rea card&#237;aca de tamanho normal, desviada para a direita em decorr&#234;ncia de hipoplasia do pulm&#227;o direito. O pulm&#227;o esquerdo &#233; vicariante e no lobo inferior direito visualiza-se uma imagem vascular em forma de Cimitarra (<xref ref-type="fig" rid="f2">Figura 1B</xref>).</p>
          <p><bold>Ecocardiograma:</bold> cavidades card&#237;acas normais exceto por discreto aumento biatrial, fun&#231;&#227;o biventricular normal. Aorta = 32 mm, AE = 34, VD = 28, VE = 53, septo = parede posterior = 10 mm, FEVE = 68%. Observou-se fluxo discreto do AE para o AD.</p>
          <p><bold>Tomografia computadorizada do t&#243;rax:</bold><italic>Situs solitus</italic> em levocardia, com cora&#231;&#227;o dextroposto. Drenagem venosa pulmonar an&#244;mala &#224; direita com conflu&#234;ncia das veias pulmonares para um coletor venoso de grosso calibre (maior di&#226;metro 11 x 10 mm), com trajeto paramediastinal descendente, drenando no segmento supra-hep&#225;tico da veia cava inferior (Cimitarra) (<xref ref-type="fig" rid="f2">Figura 1C</xref>).</p>
          <p>Tronco pulmonar normal (22 mm). Art&#233;ria pulmonar esquerda dilatada (27 mm), com aumento da rela&#231;&#227;o art&#233;ria-br&#244;nquio intrapulmonar, podendo representar redirecionamento de fluxo ou aumento da press&#227;o pulmonar. Art&#233;ria pulmonar direita hipopl&#225;sica e tortuosa, medindo 10 mm na sua por&#231;&#227;o proximal e 9 mm no ter&#231;o m&#233;dio (<xref ref-type="fig" rid="f2">Figura 1D</xref>).</p>
          <p>Presen&#231;a de ramo arterial calibroso (13 x 13 mm) proveniente da aorta abdominal, acima da emerg&#234;ncia do tronco cel&#237;aco, e trajeto ascendente para a regi&#227;o p&#243;stero-inferior do pulm&#227;o direito (sequestro pulmonar aneurism&#225;tico).</p>
          <p>Pulm&#227;o direito hipopl&#225;sico e pulm&#227;o esquerdo vicariante.</p>
          <p>Descontinuidade da por&#231;&#227;o p&#243;stero-lateral do diafragma &#224; direita, sugestiva de h&#233;rnia de Bochdalek.</p>
        </sec>
      </sec>
      <sec>
        <title>Diagn&#243;stico Cl&#237;nico</title>
        <p>S&#237;ndrome de cimitarra com hipoplasia do pulm&#227;o direito e sequestro pulmonar do lobo inferior direito.</p>
        <sec>
          <title>Racioc&#237;nio Cl&#237;nico</title>
          <p>Paciente oligossintom&#225;tica, sem defini&#231;&#227;o de diagn&#243;stico cl&#237;nico, devido aus&#234;ncia de sinais sugestivos de qualquer cardiopatia cong&#234;nita e com ECG normal. A radiografia de t&#243;rax tornou-se capital para o diagn&#243;stico da s&#237;ndrome de cimitarra, confirmado pela angio-tomografia. A repercuss&#227;o cl&#237;nica discreta da anomalia, que permitiu a longa evolu&#231;&#227;o natural, decorre da pequena comunica&#231;&#227;o interatrial e do hipofluxo pulmonar &#224; direita.</p>
        </sec>
        <sec>
          <title>Diagn&#243;stico diferencial</title>
          <p>Cardiopatias cong&#234;nitas de discreta repercuss&#227;o podem apresentar a mesma evolu&#231;&#227;o a longo prazo, extensivo &#224;s cardiopatias acianog&#234;nicas com discreta passagem da esquerda para a direita, como na Comunica&#231;&#227;o Interatrial (CIA), Comunica&#231;&#227;o Interventricular (CIV) e Persist&#234;ncia do Canal Atrial (PCA).</p>
        </sec>
        <sec>
          <title>Conduta</title>
          <p>Em virtude da discreta repercuss&#227;o cl&#237;nica e hemodin&#226;mica da anomalia venosa pulmonar, considerou-se conduta cl&#237;nica expectante.</p>
        </sec>
        <sec>
          <title>Coment&#225;rios</title>
          <p>A s&#237;ndrome da cimitarra &#233; uma anomalia da drenagem venosa do pulm&#227;o direito para a veia cava inferior acompanhada de hipoplasia pulmonar direita, anormalidade na &#225;rvore br&#244;nquica, dextrocardia, suprimento arterial sist&#234;mico para o pulm&#227;o direito origin&#225;rio da aorta abdominal. Ocorrem, concomitantemente, anomalias card&#237;acas cong&#234;nitas em um ter&#231;o dos casos, tais como: defeito do septo ventricular e/ou atrial, persist&#234;ncia do canal arterial, coarta&#231;&#227;o da aorta e tetralogia de Fallot. Outras malforma&#231;&#245;es que podem estar associadas a essa s&#237;ndrome s&#227;o: eventra&#231;&#227;o do hemidiafragma direito, anormalidades vertebrais, hiposp&#225;dia, ureter duplo e duplica&#231;&#227;o uretral.<xref ref-type="bibr" rid="B1">1</xref>
					</p>
          <p>A primeira descri&#231;&#227;o dessa s&#237;ndrome foi feita por Cooper e Chassinat em 1836 e o primeiro tratamento cir&#250;rgico foi descrito por Kirkling et al.,<xref ref-type="bibr" rid="B1">1</xref> em 1956.</p>
          <p>Dupuis et al.,<xref ref-type="bibr" rid="B2">2</xref> classificaram a s&#237;ndrome da cimitarra em duas formas: a infantil, que ocorre em crian&#231;as menores de um ano e cursa geralmente com insufici&#234;ncia card&#237;aca e hipertens&#227;o pulmonar, acarretando pior progn&#243;stico, e a forma adulta (crian&#231;as maiores e adultos), que na maioria das vezes cursa assintom&#225;tica, com bom progn&#243;stico.<xref ref-type="bibr" rid="B1">1</xref><sup>,</sup><xref ref-type="bibr" rid="B2">2</xref>
					</p>
          <p>A nomenclatura de cimitarra (similar &#224; espada turca) &#233; simb&#243;lica, descrita por Neil et al. em 1960, devido &#224; imagem radiol&#243;gica de uma veia pulmonar direita, vertical descendente, lembrando o sabre oriental de cimitarra.<xref ref-type="bibr" rid="B1">1</xref>
					</p>
          <p>A maioria dos casos na literatura &#233; operada nos primeiros anos at&#233; a juventude e raramente na idade adulta como descrito na literatura em paciente com 66 anos.<xref ref-type="bibr" rid="B3">3</xref>
					</p>
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