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<article article-type="review-article" dtd-version="1.0" xml:lang="hr" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML">
<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">LV</journal-id>
<journal-id journal-id-type="nlm-ta">Lijec Vjesn</journal-id>
<journal-title-group>
<journal-title>Lijecnicki Vjesnik</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Lijec. Vjesn.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="ppub">0024-3477</issn>
<issn pub-type="epub">1849-2177</issn>
<publisher><publisher-name>Croatian Medical Association</publisher-name></publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">LV-147-265</article-id>
<article-id pub-id-type="doi">10.26800/LV-147-7-8-4</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Professional paper</subject></subj-group>
</article-categories>
<title-group>
<article-title>Bilateralna meandriraju&#x0107;a plu&#x0107;na vena &#x2013; prikaz bolesnika s pregledom literature</article-title>
<trans-title-group xml:lang="en">
<trans-title>Bilateral meandering pulmonary vein &#x2013; Case report with literature review</trans-title>
</trans-title-group>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-7136-6172</contrib-id><name><surname>Planini&#x0107;</surname><given-names>Mile</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Coce</surname><given-names>Neva</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Re&#x017E;an</surname><given-names>Robert</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ribi&#x0107;</surname><given-names>Matija</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Hrabak Paar</surname><given-names>Maja</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref><xref ref-type="aff" rid="aff3"><sup>3</sup></xref></contrib>
<aff id="aff1"><label>1</label>Dom zdravlja Zagreba&#x010D;ke &#x017E;upanije</aff>
<aff id="aff2"><label>2</label><institution>Klini&#x010D;ki zavod za dijagnosti&#x010D;ku i intervencijsku radiologiju, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb</institution>, <addr-line>Zagreb</addr-line></aff>
<aff id="aff3"><label>3</label><institution>Medicinski fakultet Sveu&#x010D;ili&#x0161;ta u Zagrebu</institution>, <addr-line>Zagreb</addr-line></aff>
</contrib-group>
<author-notes>
<corresp id="cor1">Adresa za dopisivanje: Mile Planini&#x0107;, dr. med., <ext-link ext-link-type="uri" xlink:href="https://orcid.org/0009-0007-7136-6172">https://orcid.org/0009-0007-7136-6172</ext-link>; Dom zdravlja Zagreba&#x010D;ke &#x017E;upanije, Ljudevita Gaja 37, 10430 Samobor, e-po&#x0161;ta: <email xlink:href="mile.planinic@gmail.com">mile.planinic@gmail.com</email></corresp>
<fn fn-type="con">
<p content-type="fn-title">DOPRINOS AUTORA</p>
<p>K<sc>oncepcija</sc> <sc>ili</sc> <sc>nacrt</sc> <sc>rada</sc>: MP, NC, RR, MR</p>
<p>P<sc>rikupljanje</sc>, <sc>analiza</sc> <sc>i</sc> <sc>interpretacija</sc> <sc>podataka</sc>: MP, NC, RR, MR, MHP</p>
<p>P<sc>isanje</sc> <sc>prve</sc> <sc>verzije</sc> <sc>rada</sc>: MP, NC</p>
<p>K<sc>riti&#x010D;ka</sc> <sc>revizija</sc>: MHP</p>
</fn>
</author-notes>
<pub-date date-type="pub" publication-format="electronic"><month>09</month><year>2025</year></pub-date>
<pub-date date-type="pub" publication-format="print"><month>09</month><year>2025</year></pub-date>
<volume>147</volume>
<issue>7-8</issue>
<fpage>265</fpage>
<lpage>268</lpage>
<permissions>
<copyright-statement>Croatian Medical Association</copyright-statement>
<copyright-year>2025</copyright-year>
<copyright-holder>Croatian Medical Association</copyright-holder>
<license xlink:href="https://creativecommons.org/licenses/by-nc-nd/4.0/" specific-use="CC BY-NC-ND 4.0"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (CC BY-NC-ND) 4.0 License.</license-p></license>
</permissions>
<abstract>
<title>SA&#x017D;ETAK</title>
<p>Meandriraju&#x0107;a plu&#x0107;na vena (engl. <italic>meandering pulmonary vein</italic>, MPV) izrazito je rijetka kongenitalna venska anomalija s do sada opisanih dvadesetak slu&#x010D;ajeva u literaturi. Rije&#x010D; je o vijugavoj, aberantnoj plu&#x0107;noj veni koja naj&#x010D;e&#x0161;&#x0107;e drenira desno plu&#x0107;no krilo ili njegov dio te se ulijeva u lijevi atrij. Nije potrebno nikakvo lije&#x010D;enje budu&#x0107;i da ne postoji komunikacija izme&#x0111;u plu&#x0107;ne i sistemske cirkulacije u vidu formiranog lijevo-desnog pretoka. Naj&#x010D;e&#x0161;&#x0107;e diferencijalno-dijagnosti&#x010D;ke dvojbe uklju&#x010D;uju sindrom <italic>scimitar</italic>, plu&#x0107;nu arteriovensku malformaciju, plu&#x0107;ni venski variks ili nodoznu leziju. Cilj je na&#x0161;ega rada opisati vrlo rijetku plu&#x0107;nu vensku anomaliju koja ne zahtijeva lije&#x010D;enje i napraviti distinkciju izme&#x0111;u sli&#x010D;nih i &#x010D;e&#x0161;&#x0107;ih venskih anomalija koje uzrokuju lijevo-desni pretok. Prikazujemo slu&#x010D;aj mlade pacijentice s bilateralnim MPV-om otkrivenim slu&#x010D;ajno prilikom preoperativne obrade.</p>
</abstract>
<trans-abstract xml:lang="en">
<title>SUMMARY</title>
<p>Meandering pulmonary vein (MPV) is an extremely rare congenital venous anomaly, with approximately 20 cases reported in the literature so far. It refers to a tortuous, aberrant pulmonary vein that most frequently drains the entire right lung or its part and empties into the left atrium. No treatment is required as there is no communication between the pulmonary and systemic circulation in the form of a left-to-right shunt. The most common differential diagnoses include Scimitar syndrome, pulmonary arteriovenous malformation, pulmonary venous varix, or a nodular lesion. The purpose of our study is to describe a very rare pulmonary venous anomaly that does not require treatment and to make a distinction between similar and more common venous anomalies that cause a left-to-right shunt. We present the case of a young patient with bilateral MPV detected incidentally during preoperative evaluation.</p>
</trans-abstract>
<kwd-group kwd-group-type="author"><kwd>Deskriptori PLU&#x0106;NE VENE &#x2013; anomalije, slikovna dijagnostika</kwd><kwd>SCIMITAR SINDROM &#x2013; slikovna dijagnostika</kwd><kwd>RA&#x010C;UNALNA TOMOGRAFIJA</kwd></kwd-group>
<kwd-group kwd-group-type="translator" xml:lang="en"><title>Descriptors </title><kwd>PULMONARY VEINS &#x2013; abnormalities, diagnostic imaging</kwd><kwd>SCIMITAR SYNDROME &#x2013; diagnostic imaging</kwd><kwd>TOMOGRAPHY, X-RAY COMPUTED</kwd></kwd-group>
</article-meta>
</front>
<body>
<p>Meandriraju&#x0107;a plu&#x0107;na vena (engl. <italic>meandering pulmonary vein</italic>, MPV) vrlo je rijetka kongenitalna venska anomalija koja se o&#x010D;ituje postojanjem vijugave i pro&#x0161;irene vene anomalnog tijeka koja drenira naj&#x010D;e&#x0161;&#x0107;e desno plu&#x0107;no krilo ili njegov dio, te se ulijeva u lijevi atrij. Prvi put je opisana od strane Goodmana i suradnika 1972. godine kao aberantna, pro&#x0161;irena desnostrana plu&#x0107;na vena koja nalikuje sindromu <italic>scimitar</italic>, ali se za razliku od njega drenira u lijevi atrij. (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>)</p>
<p>Pregledom literature do sada je opisano dvadesetak slu&#x010D;ajeva ovakve venske anomalije. U ve&#x0107;ini slu&#x010D;ajeva radilo se o desnostranoj aberantnoj plu&#x0107;noj veni, a opisano je i nekoliko slu&#x010D;ajeva lijevostrane varijante. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r3"><italic>3</italic></xref>)</p>
<p>Na konvencionalnoj radiolo&#x0161;koj dijagnostici mo&#x017E;e se prezentirati kao znak <italic>scimitar</italic> (engl. <italic>scimitar</italic> &#x2013; zakrivljena sablja) ili pak kao nodozna sjena.</p>
<p>Naj&#x010D;e&#x0161;&#x0107;a diferencijalno-dijagnosti&#x010D;ka dvojba odnosi se na razlikovanje od sindroma <italic>scimitar</italic> koji se o&#x010D;ituje postojanjem hipoplasti&#x010D;noga desnog plu&#x0107;nog krila koje se putem anomalne vene drenira u donju &#x0161;uplju venu i za razliku od MPV-a ima reperkusije na cirkulaciju u smislu lijevo-desnog pretoka. (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>, <xref ref-type="bibr" rid="r4"><italic>4</italic></xref>)</p>
<p>Cilj je na&#x0161;ega rada opisati vrlo rijetku plu&#x0107;nu vensku anomaliju koja ne zahtijeva lije&#x010D;enje i napraviti distinkciju izme&#x0111;u sli&#x010D;nih i &#x010D;e&#x0161;&#x0107;ih venskih anomalija koje uzrokuju lijevo-desni pretok.</p>
<p>Prikazujemo slu&#x010D;aj mlade &#x017E;ene koja je u sklopu preoperativne obrade upu&#x0107;ena na daljnju dijagnostiku na temelju neo&#x010D;ekivanoga multinodularnog zasjenjenja desnog plu&#x0107;nog krila verificiranog na rendgenogramu torakalnih organa u&#x010D;injenom u sklopu preoperativne obrade.</p>
<sec sec-type="other1">
<title>Prikaz slu&#x010D;aja</title>
<p>Tridesetogodi&#x0161;nja pacijentica je upu&#x0107;ena od strane pulmologa na kompjutoriziranu tomografiju (CT) toraksa zbog patolo&#x0161;kog nalaza na rendgenogramu torakalnih organa koji je u&#x010D;injen u vanjskoj ustanovi u sklopu preoperativne obrade za planirani ginekolo&#x0161;ki zahvat operacije endometrioze.</p>
<p>Rendgenogram torakalnih organa prikazivao je prominentnu sjenu desnog hilusa s nepravilnom, multinodularnom sjenom nejasne etiologije u hilokaudalnom podru&#x010D;ju. Preostali nalaz je bio bez osobitosti (<xref ref-type="fig" rid="f1">Figure 1</xref>).</p>
<fig id="f1" position="float" fig-type="figure"><label>Figure 1</label><caption><p>Chest X-ray (A &#x2013; posteroanterior, B &#x2013; lateral view) shows a prominent right hilum and a multinodular-shaped density in the right paracardial region. The lung parenchyma and mediastinum are symmetrical and without any other abnormalities.</p></caption><graphic xlink:href="LV-147-265-f1"></graphic></fig>
<p>Osim endometrioze, pacijentica nema nikakve poznate komorbiditete niti bilo kakve respiratorne tegobe.</p>
<p>Na postkontrastnom CT pregledu dominantan nalaz je pro&#x0161;irena desna plu&#x0107;na vena koja drenira &#x010D;itavo desno plu&#x0107;no krilo i ima aberantan, vijugav tok. Pru&#x017E;a se inferomedijalno prema dijafragmi, zatim lu&#x010D;no zavija prema kranijalno i ulijeva se u lijevi atrij (<xref ref-type="fig" rid="f2">Figure 2</xref>). Ne nalazi se komunikacija navedene vene s donjom &#x0161;upljom venom. Manja meandriraju&#x0107;a plu&#x0107;na vena izdvaja se i u gornjem lijevom plu&#x0107;nom re&#x017E;nju, te se spaja s lingularnom venom u gornju lijevu plu&#x0107;nu venu i ulijeva u lijevi atrij. Nema znakova lijevo-desnog pretoka ni drugih kardiovaskularnih anomalija. Nema znakova anomalne sistemske vaskularizacije plu&#x0107;nog parenhima.</p>
<fig id="f2" position="float" fig-type="figure"><label>Figure 2</label><caption><p>Post-contrast CT images in coronal maximum intensity projection (A) and threedimensional reconstructions (B &#x2013; anterior view, C &#x2013; posterior view) show an aberrant, dilated, tortuous right pulmonary vein (blue arrows) with the orifice (asterisk) in the left atrium. A smaller meandering pulmonary vein is visible in the left upper lobe (white arrow), which connects to the lingular vein to form the upper left pulmonary vein (yellow arrow).</p></caption><graphic xlink:href="LV-147-265-f2"></graphic></fig>
<p>S obzirom na navedeno, postavljena je dijagnoza bilateralne MPV te je pacijentica upu&#x0107;ena na nastavak preoperativne pripreme, bez potrebne daljnje obrade i lije&#x010D;enja.</p>
</sec>
<sec sec-type="other2">
<title>Rasprava i pregled literature</title>
<p>Anomalije plu&#x0107;nih vena naj&#x010D;e&#x0161;&#x0107;e se o&#x010D;ituju lijevo-desnim pretokom jer se ulijevaju u desni atrij ili sistemske vene umjesto u lijevi atrij. Anomalni utok plu&#x0107;nih vena mo&#x017E;e biti potpun kada se o&#x010D;ituje ve&#x0107; u neonatalnoj dobi, ili djelomi&#x010D;an, kod kojega samo jedna ili vi&#x0161;e anomalnih vena ima anomalni utok, dok se ostale ulijevaju u lijevi atrij. Rje&#x0111;e susre&#x0107;emo anomalni tijek plu&#x0107;ne vene koja se ulijeva u lijevi atrij, bez postojanja lijevo-desnog pretoka. U preciznoj anatomskoj definiciji tijeka i mjesta utoka plu&#x0107;nih vena te planiranju lije&#x010D;enja bolesnika glavnu ulogu imaju metode neinvazivnog oslikavanja poput CT angiografije ili angiografije magnetnom rezonancijom. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>)</p>
<p>MPV mo&#x017E;e predstavljati diferencijalno-dijagnosti&#x010D;ke dvojbe, posebno na konvencionalnoj radiolo&#x0161;koj dijagnostici, pa se mo&#x017E;e zamijeniti sa sindromom <italic>scimitar</italic>, plu&#x0107;nom arteriovenskom malformacijom, plu&#x0107;nim venskim variksom ili, kao u na&#x0161;em slu&#x010D;aju, multinodularnom lezijom. Stoga je va&#x017E;na uloga postkontrastnog CT pregleda s multiplanarnim rekonstrukcijama kako bi se definirala to&#x010D;na morfologija i odredili daljnji postupci. (<xref ref-type="bibr" rid="r4"><italic>4</italic></xref>, <xref ref-type="bibr" rid="r6"><italic>6</italic></xref>, <xref ref-type="bibr" rid="r7"><italic>7</italic></xref>)</p>
<p>Plu&#x0107;na arteriovenska malformacija predstavlja abnormalnu komunikaciju izme&#x0111;u plu&#x0107;ne arterijske i venske cirkulacije koja se na CT angiografiji o&#x010D;ituje kao jasno ograni&#x010D;ena vaskularizirana lezija s pripadaju&#x0107;om arterijom hranilicom i drena&#x017E;nom venom. Plu&#x0107;ni venski variks predstavlja kongenitalnu dilataciju plu&#x0107;ne vene koja zadovoljava angiografske kriterije za dijagnozu. (<xref ref-type="bibr" rid="r6"><italic>6</italic></xref>, <xref ref-type="bibr" rid="r7"><italic>7</italic></xref>)</p>
<p>Naj&#x010D;e&#x0161;&#x0107;u diferencijalno-dijagnosti&#x010D;ku dvojbu ipak predstavlja sindrom <italic>scimitar</italic> koji se jednako kao i MPV na klasi&#x010D;nom rendgenogramu plu&#x0107;a &#x010D;esto o&#x010D;ituje znakom <italic>scimitra</italic>.</p>
<p>Glavna zna&#x010D;ajka klasi&#x010D;nog sindroma <italic>scimitar</italic> jest anomalna drena&#x017E;a dijela ili cijeloga desnog plu&#x0107;nog krila putem pro&#x0161;irene, aberantne plu&#x0107;ne vene koja se drenira u donju &#x0161;uplju venu, a posljedica je nastanak lijevo-desnog pretoka. Uz to nalazi se i hipoplazija desne plu&#x0107;ne arterije, hipoplasti&#x010D;no desno plu&#x0107;no krilo i prate&#x0107;a dekstropozicija srca, ponekad uz anomalnu sistemsku opskrbu desnog donjeg re&#x017E;nja (sekvestracija plu&#x0107;a). Znak <italic>scimitar</italic> se morfolo&#x0161;ki prezentira kao zakrivljena vaskularna sjena na rendgenogramu torakalnih organa koja prolazi uz desnu konturu sjene srca prema desnom kardiofreni&#x010D;nom kutu. Za navedenu morfologiju nekada se smatralo da je dijagnosti&#x010D;ki znak za sindrom <italic>scimitar</italic>. (<xref ref-type="bibr" rid="r4"><italic>4</italic></xref>, <xref ref-type="bibr" rid="r8"><italic>8</italic></xref>)</p>
<p>Po svemu sude&#x0107;i, MPV i sindrom <italic>scimitar</italic> imaju zajedni&#x010D;ku embriolo&#x0161;ku etiologiju. Opisane su i neke preklapaju&#x0107;e varijante izme&#x0111;u MPV-a i sindroma <italic>scimitar</italic> koje su nazvane varijantom <italic>scimitar</italic>, a MPV se opisivala i kao jednostruka anomalna unilateralna plu&#x0107;na vena (engl. <italic>anomalous unilateral single pulmonary vein</italic>, AUSPV) ili kao pseudoscimitar sindrom. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r9"><italic>9</italic></xref>)</p>
<p>S obzirom na zbunjuju&#x0107;u terminologiju, Rodrigues i suradnici su predlo&#x017E;ili kori&#x0161;tenje sljede&#x0107;ih naziva (<xref ref-type="bibr" rid="r8"><italic>8</italic></xref>):</p>
<list id="L1" list-type="simple"><list-item><p>meandriraju&#x0107;a desna plu&#x0107;na vena (engl. <italic>meandering right pulmonary vein</italic>, MRPV) &#x2013; termin kojim se opisuje anomalna plu&#x0107;na vena koja drenira dio desnoga plu&#x0107;nog krila i drenira se u lijevi atrij;</p></list-item>
<list-item><p>varijanta <italic>scimitar</italic> &#x2013; termin kojim se opisuje dvostruka komunikacija anomalne plu&#x0107;ne vene s donjom &#x0161;upljom venom i s lijevim atrijem;</p></list-item>
<list-item><p>meandriraju&#x0107;e pulmonalne vene (engl. <italic>meandering pulmonary veins</italic>, MPV) &#x2013; termin kojim se opisuju slu&#x010D;ajevi gdje postoji vi&#x0161;e od jedne anomalne plu&#x0107;ne vene koje se dreniraju u lijevi atrij;</p></list-item>
<list-item><p>jednostruka anomalna unilateralna plu&#x0107;na vena (engl. <italic>anomalous unilateral single pulmonary vein</italic>, AUSPV) &#x2013; termin kojim se opisuju slu&#x010D;ajevi kod kojih postoji samo jedna anomalna vena koja drenira cijelo plu&#x0107;no krilo u lijevi atrij ili u donju &#x0161;uplju venu.</p></list-item></list>
<p>Sindrom <italic>scimitar</italic>, varijanta <italic>scimitar</italic> i MPV mogu se smatrati spektrom plu&#x0107;nih vaskularnih anomalija koje imaju zajedni&#x010D;ku embriolo&#x0161;ku podlogu, sa sindromom <italic>scimitar</italic> s jedne strane, MPV-om s druge strane, a varijanta <italic>scimitar</italic> je negdje u sredini. (<xref ref-type="bibr" rid="r10"><italic>10</italic></xref>&#x2013;<xref ref-type="bibr" rid="r12"><italic>12</italic></xref>)</p>
<p>Na&#x0161; slu&#x010D;aj bilateralne meandriraju&#x0107;e plu&#x0107;ne vene ubrajao bi se u tre&#x0107;u kategoriju prema Rodriguesovoj kategorizaciji i klasificirao bi se kao MPV. Od iznimne je va&#x017E;nosti razlikovati ove entitete jer u slu&#x010D;aju MRPV-a, MPV-a i AUSPV-a s drena&#x017E;om u lijevi atrij isklju&#x010D;uje se postojanje lijevo-desnog &#x0161;anta i pravi se distinkcija u odnosu na &#x010D;e&#x0161;&#x0107;i, ali mnogo slo&#x017E;eniji sindrom <italic>scimitar</italic> koji ima reperkusije na cirkulaciju jer dovodi do lijevo-desnog pretoka.</p>
</sec>
<sec sec-type="other3">
<title>Zaklju&#x010D;ak</title>
<p>Nalaz bilateralne MPV, bez znakova sindroma <italic>scimitar</italic> ili drugih anomalija, ne zahtijeva nikakvu daljnju obradu ni lije&#x010D;enje. Ovakve anomalno pro&#x0161;irene plu&#x0107;ne vene mogu se prezentirati kao multinodozna sjena na rendgenogramu ili kao klasi&#x010D;ni znak <italic>scimitra</italic>. S obzirom na nespecifi&#x010D;an prikaz, CT je metoda izbora za razja&#x0161;njenje etiologije opisanog zasjenjenja, a ujedno omogu&#x0107;uje preciznu definiciju tijeka i mjesta u&#x0161;&#x0107;a anomalnih vena.</p>
</sec>
</body>
<back>
<fn-group>
<fn fn-type="conflict">
<p content-type="fn-title">INFORMACIJE O SUKOBU INTERESA</p>
<p>Autori nisu deklarirali sukob interesa relevantan za ovaj rad.</p>
</fn>
<fn fn-type="financial-disclosure">
<p content-type="fn-title">INFORMACIJA O FINANCIRANJU</p>
<p>Za ovaj &#x010D;lanak nisu primljena financijska sredstva.</p>
</fn>
</fn-group>
<ref-list>
<title>LITERATURA</title>
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