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<article article-type="case-report" 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-144-44</article-id>
<article-id pub-id-type="doi">10.26800/LV-144-1-2-5</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Clinical observation</subject></subj-group>
</article-categories>
<title-group>
<article-title>Epizodni angioedem s eozinofilijom (Gleichov sindrom) &#x2013; dijagnosti&#x010D;ki izazov</article-title>
<trans-title-group xml:lang="en">
<trans-title>Episodic angioedema with eosinophilia (Gleich syndrome) &#x2013; a diagnostic challenge</trans-title>
</trans-title-group>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes"><name><surname>Valeti&#x0107;</surname><given-names>Ana Marija</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Mitrovi&#x0107;</surname><given-names>Jo&#x0161;ko</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Jelu&#x0161;i&#x0107;</surname><given-names>Marija</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ani&#x0107;</surname><given-names>Branimir</given-names></name><xref ref-type="aff" rid="aff4"><sup>4</sup></xref></contrib><contrib contrib-type="author"><name><surname>Morovi&#x0107; Vergles</surname><given-names>Jadranka</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib>
<aff id="aff1"><label>1</label><institution>Zavod za klini&#x010D;ku imunologiju, pulmologiju i reumatologiju, Klinika za unutarnje bolesti, Klini&#x010D;ki bolni&#x010D;ki centar Sestre milosrdnice</institution>, <addr-line>Zagreb</addr-line></aff>
<aff id="aff2"><label>2</label><institution>Zavod za klini&#x010D;ku imunologiju, alergologiju i reumatologiju, Klinika za unutarnje bolesti Medicinskog fakulteta Sveu&#x010D;ili&#x0161;ta u Zagrebu, Klini&#x010D;ka bolnica Dubrava</institution>, <addr-line>Zagreb</addr-line></aff>
<aff id="aff3"><label>3</label>Klinika za pedijatriju Medicinskog fakulteta Sveu&#x010D;ili&#x0161;ta u Zagrebu, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb</aff>
<aff id="aff4"><label>4</label>Zavod za klini&#x010D;ku imunologiju i reumatologiju, Klinika za unutarnje bolesti Medicinskog fakulteta u Zagrebu, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb</aff>
</contrib-group>
<author-notes>
<corresp id="cor1">Adresa za dopisivanje: Ana Marija Valeti&#x0107;, dr. med., Klinika za unutarnje bolesti, KBC Sestre milosrdnice, Vinogradska cesta 29, Zagreb, e-po&#x0161;ta: <email xlink:href="valetic.anamarija@hotmail.com">valetic.anamarija@hotmail.com</email></corresp></author-notes>
<pub-date pub-type="epub-ppub"><month>02</month><year>2022</year></pub-date>
<volume>144</volume>
<issue>1-2</issue>
<fpage>44</fpage>
<lpage>46</lpage>
<permissions>
<copyright-year>2022</copyright-year>
<copyright-holder>Croatian Medical Association</copyright-holder>
<license xlink:href="http://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>Epizodni angioedem s eozinofilijom, poznat i kao Gleichov sindrom, izuzetno je rijedak poreme&#x0107;aj karakteriziran ponavljaju&#x0107;om pojavom angioedema, urtikarije, vru&#x0107;ice, porastom tjelesne te&#x017E;ine, uz povi&#x0161;ene serumske vrijednosti imunoglobulina M i leukocitozu sa zna&#x010D;ajnom eozinofilijom. Uzrok i patofiziolo&#x0161;ki mehanizmi nastanka bolesti nisu u potpunosti razja&#x0161;njeni. Javlja se ve&#x0107;inom kod djece, odnosno odraslih osoba mla&#x0111;e &#x017E;ivotne dobi. Prvi izbor u lije&#x010D;enju jesu glukokortikoidi, a prognoza je ve&#x0107;inom dobra. U radu smo prikazali bolesnika kojemu smo na osnovi ponavljaju&#x0107;ih epizoda angioedema i febriliteta uz prisustvo leukocitoze s eozinofilijom i povi&#x0161;enih vrijednosti imunoglobulina M postavili dijagnozu Gleichovog sindroma. Bolesnik je nakon primjene glukokortikoida tijekom &#x010D;etiri godine pra&#x0107;enja u stabilnoj remisiji bolesti.</p>
</abstract>
<trans-abstract xml:lang="en">
<title>SUMMARY</title>
<p>Episodic angioedema with eosinophilia, also known as Gleich syndrome, is an extremely rare disorder characterized by recurrent occurrence of angioedema, urticaria, fever, increased body weight, elevated serum values of immunoglobulin M, and leukocytosis with significant eosinophilia. The cause and pathogenesis of the disease are not fully clarified. It occurs mostly in children or adults of younger age. The first choice of treatment are glucocorticoids, and the prognosis is mostly good. We report a case of a patient who was diagnosed with Gleich syndrome based on recurrent episodes of angioedema and fever in the presence of leukocytosis with eosinophilia and elevated immunoglobulin M values. The patient has been in stabile remission for four years since the administration of glucocorticoids.</p>
</trans-abstract>
<kwd-group kwd-group-type="author"><kwd>Deskriptori ANGIOEDEM &#x2013; dijagnoza, farmakoterapja, komplikacije</kwd><kwd>EOZINOFILIJA &#x2013; komplikacije</kwd><kwd>LEUKOCITOZA &#x2013; komplikacije</kwd><kwd>IMUNOGLOBULIN M &#x2013; u krvi</kwd><kwd>VRU&#x0106;ICA</kwd><kwd>GLUKOKORTIKOIDI &#x2013; terapijska uporaba</kwd><kwd>HIPEREOZINOFILNI SINDROM</kwd></kwd-group>
<kwd-group kwd-group-type="translator" xml:lang="en"><title>Descriptors </title><kwd>ANGIOEDEMA &#x2013; complications, diagnosis, drug therapy</kwd><kwd>EOSINOPHILIA &#x2013; complications</kwd><kwd>LEUKOCYTOSIS &#x2013; complications</kwd><kwd>IMMUNOGLOBULIN M &#x2013; blood</kwd><kwd>FEVER</kwd><kwd>GLUCOCORTICOIDS &#x2013; therapeutic use</kwd><kwd>HYPEREOSINOPHILIC SYNDROME</kwd></kwd-group>
</article-meta>
</front>
<body>
<p>Epizodni angioedem s eozinofilijom (EAE) ili Gleichov sindrom izuzetno je rijedak poreme&#x0107;aj karakteriziran ponavljaju&#x0107;om pojavom angioedema, urtikarije, vru&#x0107;ice, porastom tjelesne te&#x017E;ine, uz povi&#x0161;ene serumske vrijednosti imunoglobulina M (IgM) i leukocitozu sa zna&#x010D;ajnom eozinofilijom. Simptomi i znakovi bolesti naj&#x010D;e&#x0161;&#x0107;e se javljaju u intervalima od tri do &#x010D;etiri tjedna i prolaze spontano. (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>, <xref ref-type="bibr" rid="r2"><italic>2</italic></xref>) Sindrom su prvi put opisali 1984. godine Gleich i suradnici (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>), a do sada je u literaturi opisano oko stotinu bolesnika ve&#x0107;inom mla&#x0111;e &#x017E;ivotne dobi (10 do 34 godine) (<xref ref-type="bibr" rid="r3"><italic>3</italic></xref>, <xref ref-type="bibr" rid="r4"><italic>4</italic></xref>). Uzrok i mehanizam nastanka ove bolesti nisu u potpunosti razja&#x0161;njeni, kao ni uloga eozinofila u razvoju klini&#x010D;ke slike. Prema nekim istra&#x017E;ivanjima uo&#x010D;ena je povezanost sa cikli&#x010D;kim izmjenama serumskih vrijednosti interleukina 5 (IL-5) (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>) i/ili &#x010D;imbenika stimulacije granulocita-makrofaga (engl. <italic>granulocyte-macrophage colony-stimulating factor</italic>, GM-CSF) (<xref ref-type="bibr" rid="r6"><italic>6</italic></xref>). Kod manjeg broja bolesnika s EAE prona&#x0111;ena je klonalna ekspanzija aberantnih CD3-CD4+ limfocita T. Detekcija citokina Th2 unutar aktiviranih CD4 T-stanica i ve&#x0107; ranije spomenuta povi&#x0161;ena vrijednost serumskog IL-5 mo&#x017E;e govoriti u prilog tomu da je hipereozinofilija zapravo posredovana T-stanicama. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r3"><italic>3</italic></xref>) Benigan klini&#x010D;ki tijek EAE i po&#x0161;teda od o&#x0161;te&#x0107;enja unutarnjih organa razlikuje ove bolesnike od bolesnika koji boluju od idiopatskoga hipereozinofilnog sindroma (HES). (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>) Nadalje, povi&#x0161;ene vrijednosti IgM-a nisu specifi&#x010D;ne za bolesnike s HES-om. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>) Mnogi autori smatraju kako je EAE zaseban entitet, dok neki smatraju kako se ova dva sindroma zapravo preklapaju. (<xref ref-type="bibr" rid="r7"><italic>7</italic></xref>) U ovom radu prikazali smo bolesnika s epizodama angioedema, hipereozinfilije i povi&#x0161;enim vrijednostima IgM-a, u kojega je postavljena dijagnoza Gleichova sindroma.</p>
<sec sec-type="other1">
<title>Prikaz bolesnika</title>
<p>Kod bolesnika se u dobi od petnaest godina prvi put javljaju simptomi bolesti u obliku recidiviraju&#x0107;ih angioedema podlaktica i lica pra&#x0107;enih crvenilom uz febrilitet do 38,2&#x00B0;C. Tegobe su se javljale spontano svakih mjesec dana, bez jasnih provociraju&#x0107;ih &#x010D;imbenika, te spontano prolazile nakon nekoliko dana. Prvotno je kod bolesnika u&#x010D;injena opse&#x017E;na pedijatrijska dijagnosti&#x010D;ka obrada. Iz tada u&#x010D;injenih nalaza izdvajamo progresivnu leukocitozu do maksimalno 41,03 &#x00D7; 10<sup>9</sup>/L (n.v. 4,4&#x2013;11,6&#x00D7; 10<sup>9</sup>/L) uz porast udjela eozinofila u diferencijalnoj krvnoj slici (do 78%), urednu brzinu sedimentacije eritrocita (SE) i blago povi&#x0161;ene vrijednosti C-reaktivnog proteina 10,2 mg/L (n. v. 0,0&#x2013;5,0 mg/L). Serolo&#x0161;ki nalazi (antiCCP, C3, C4, ANA, histoni, SS-A, SS-B, Sm, U1-RNP, DNA-topo1, Jo-1, CENP-B, ANCA, CH50) bili su negativni. Koncentracije triptaze i C1-inhibitora u serumu bile su u granicama referentnih vrijednosti. Vrijednost imunoglobulina M je varirala od 17,63 g/l do 5,48 g/l (n. v. 0,23&#x2013;2,59 g/l). Imunoglobulin E je iznosio 65,0 (n. v. do 87 kU/L). Mikrobiolo&#x0161;kom obradom stolice na parazite i serolo&#x0161;kom obradom na toksoplazmu nije izoliran patolo&#x0161;ki uzro&#x010D;nik. Citolo&#x0161;kim pregledom punktata ko&#x0161;tane sr&#x017E;i na&#x0111;eni su prijelazni i zreli eozinofilni oblici u udjelu od 21%. Citogenetskom analizom stanica ko&#x0161;tane sr&#x017E;i nisu dokazane delecije receptora za &#x010D;imbenik rasta podrijetlom iz trombocita (engl. <italic>platelet-derived growth factor receptor</italic>, PDGFR) alfa i beta niti fuzijski prijepis FIP1L1 &#x2013; PDGFR&#x03B1; gena. Alel specifi&#x010D;nom lan&#x010D;anom reakcijom polimeraze (engl. <italic>allele-specific polymerase chain reaction</italic>, ASP PCR) nije dokazana mutacija D816V gena c-kit. Imunofenotipizacijom ko&#x0161;tane sr&#x017E;i nije na&#x0111;eno patolo&#x0161;kih naznaka u limfocitnoj frakciji ko&#x0161;tane sr&#x017E;i (T-stanice su zrelog fenotipa i urednog sadr&#x017E;aja pan-T biljega). Patohistolo&#x0161;kim pregledom bioptata zahva&#x0107;ene ko&#x017E;e i mi&#x0161;i&#x0107;a podlaktice opisan je oskudni kroni&#x010D;ni upalni infiltrat uz prisutnost eozinofila oko krvnih &#x017E;ila i u vezivu mi&#x0161;i&#x0107;a. Imunoflorescencijom u bioptatu nisu na&#x0111;eni IgA, IgM, IgG, C1q i C3. Klini&#x010D;kom i opse&#x017E;nom slikovnom obradom (rendgen srca i plu&#x0107;a, ultrazvuk abdomena, ehokardiografija) nije dokazano o&#x0161;te&#x0107;enje unutarnjih organa. Zapo&#x010D;eta je terapija metilprednizolonom u dozi od 0,6 mg po kilogramu intravenski uz postupnu redukciju doze, na &#x0161;to dolazi do pobolj&#x0161;anja klini&#x010D;ke slike i laboratorijskih nalaza, osim vrijednosti IgM-a koje su i dalje bla&#x017E;e povi&#x0161;ene. Dvanaest mjeseci nakon hospitalizacije ponovljen je dijagnosti&#x010D;ki postupak kojim nisu na&#x0111;ena o&#x0161;te&#x0107;enja unutarnjih organa (laboratorijski nalazi, 24-satna proteinurija, kompjuterska tomografija prsnog ko&#x0161;a, ultrazvuk srca i trbuha, spirometrija, difuzijski kapacitet, elektrokaridogram). U laboratorijskim nalazima prati se uredna vrijednost eozinofila. Nastavljeno je lije&#x010D;enje glukokortikoidnom terapijom (metilprednizolon) u dozi od 8 mg i 4 mg. Bolesnik nakon punoljetnosti nastavlja lije&#x010D;enje kod specijalista internista-reumatologa i klini&#x010D;kog imunologa te je na osnovi ranije u&#x010D;injene pedijatrijske obrade i dodatne klini&#x010D;ke, laboratorijske i slikovne evaluacije, postavljena dijagnoza Gleichova sindroma. Nastavljeno je lije&#x010D;enje niskim dozama glukokortikoida uz koje se tijekom &#x010D;etiri godine prati stabilna remisija bolesti. U laboratorijskim nalazima i nadalje su vidljive osciliraju&#x0107;e vrijednosti IgM, neovisno o aktivnosti bolesti i dozi glukokortikoida.</p>
</sec>
<sec sec-type="other2">
<title>Rasprava</title>
<p>U diferencijalnoj dijagnostici hipereozinofilnih sindroma va&#x017E;no je razmotriti i mogu&#x0107;nost postojanja Gleichova sindroma. Iako klini&#x010D;ka slika i laboratorijski nalazi kod EAE i HES-a u po&#x010D;etku bolesti mogu biti sli&#x010D;ni, velike su razlike u daljnjem tijeku i prognozi. Kriteriji za postavljanje dijagnoze HES-a su: hipereozinofilija vi&#x0161;a od 1,5 x 10<sup>9</sup>/L u razmaku od najmanje mjesec dana i dokaz o o&#x0161;te&#x0107;enju barem jednog unutarnjeg organa. (<xref ref-type="bibr" rid="r8"><italic>8</italic></xref>) U&#x010D;injenom opse&#x017E;nom obradom kod na&#x0161;eg bolesnika za sada nije utvr&#x0111;eno o&#x0161;te&#x0107;enje unutarnjih organa, a laboratorijskim pra&#x0107;enjem zabilje&#x017E;ene su varijabilne apsolutne vrijednosti eozinofila, koje su u akutnoj fazi vi&#x0161;e, dok su se u nekoliko navrata i normalizirale. Kako bi se isklju&#x010D;ila mijeloproliferativna bolest, odnosno mijeloproliferativna varijanta HES-a (M-HES) u&#x010D;injena je genetska analiza kojom nisu dokazane kromosomske abnormalnosti (PDGFR&#x03B1; i &#x03B2;, FIP1L1 &#x2013; PDGFR&#x03B1;). Nadalje, nije prona&#x0111;ena anemija i/ili trombocitopenija, povi&#x0161;ene serumske vrijednosti vitamina B12, hepatosplenomegalija i cirkuliraju&#x0107;i prekursori leukocita, &#x0161;to bi tako&#x0111;er moglo ukazivati na mijeloproliferaciju. (<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>) Kod limfocitne varijante HES-a (L-HES), uz zahva&#x0107;anje ostalih organa, zahva&#x0107;ena je i ko&#x017E;a te meka tkiva. Kod nekih bolesnika s EAE i L-HES-om dokazane su stanice koje proizvode IL-5 u perifernoj krvi (<xref ref-type="bibr" rid="r10"><italic>10</italic></xref>) i aberantni fenotip CD3-CD4+ limfocita T. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r11"><italic>11</italic></xref>) Bolesnici s L-HES-om imaju povi&#x0161;ene vrijednosti imunoglobulina E (IgE), zahva&#x0107;anje ko&#x017E;e i limfadenopatiju, a tre&#x0107;ina bolesnika ima i povi&#x0161;en apsolutni broj limfocita u diferencijalnoj krvnoj slici. (<xref ref-type="bibr" rid="r11"><italic>11</italic></xref>) Kod na&#x0161;eg bolesnika klini&#x010D;kom i slikovnom obradom nije prona&#x0111;ena limfadenopatija, a vrijednosti IgE i limfocita bile su cijelo vrijeme pra&#x0107;enja uredne. Klonalna eozinofilija mo&#x017E;e biti prisutna i kod bolesnika s mutacijom D816V c-kit u sistemskoj mastocitozi. (<xref ref-type="bibr" rid="r12"><italic>12</italic></xref>) U ovom slu&#x010D;aju nije dokazana mutacija gena c-kit.</p>
<p>Khoury i suradnici proveli su istra&#x017E;ivanje na &#x010D;etiri bolesnika s EAE i dokazali da cikli&#x010D;ke promjene nisu prisutne samo u broju eozinofila, ve&#x0107; i drugih stani&#x010D;nih loza, uklju&#x010D;uju&#x0107;i limfocite, neutrofile i mastocite. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>) Analizom stani&#x010D;nih loza, osim hipereozinfilije, nismo uo&#x010D;ili promjene.</p>
<p>Nakon zavr&#x0161;etka obrade i isklju&#x010D;ivanja mogu&#x0107;ih drugih uzroka hipereozinofilije i HES-a zapo&#x010D;eto je lije&#x010D;enje parenteralnim glukokortikoidima. U lije&#x010D;enju bolesnika s EAE prva linija su glukokortikoidi zbog svog djelovanja na supresiju proliferacije eozinofila i stvaranje citokina u limfocitima T. Glukokortikoidi pokazuju povoljan u&#x010D;inak na apsolutne vrijednosti eozinofila i klini&#x010D;ku sliku. (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>) U slu&#x010D;aju neu&#x010D;inkovitosti i pojave komplikacija dugotrajnog uzimanja glukokortikoida postoje dodatne terapijske mogu&#x0107;nosti. Nekoliko je zabilje&#x017E;enih slu&#x010D;ajeva uspje&#x0161;nog lije&#x010D;enja EAE imatinibom (inhibitor tirozin-kinaze). U istra&#x017E;ivanju Scrantona i suradnika pretpostavka je da je uspje&#x0161;nost lije&#x010D;enja povezana s mutiranom kinazom koja je osjetljiva na imatinib, a koju nalazimo i kod bolesnika s HES-om i kroni&#x010D;nom mijeloidnom leukemijom. (<xref ref-type="bibr" rid="r14"><italic>14</italic></xref>) Nekoliko bolesnika je uspje&#x0161;no lije&#x010D;eno i intravenskom primjenom imunoglobulina. (<xref ref-type="bibr" rid="r15"><italic>15</italic></xref>) U literaturi se spominju i dva biolo&#x0161;ka lijeka za lije&#x010D;enje bolesnika s EAE, mepolizumab i omalizumab. U radu korejskih znanstvenika jedan bolesnik je lije&#x010D;en omalizumabom (protutijelo na IgE), a tijekom 18 mjeseci pra&#x0107;enja nije do&#x0161;lo do ponovne pojave simptoma bolesti. Omalizumab djeluje posredno blokiraju&#x0107;i slobodni IgE i tako smanjuje broj bazofila, mastocita i drugih upalnih stanica, pa i eozinofila (kod bolesnika s alergijskom astmom smanjena je eozinofilija u tkivima i di&#x0161;nim putevima). (<xref ref-type="bibr" rid="r4"><italic>4</italic></xref>)</p>
<p>Mepolizumab je monoklonalno protutijelo na IL-5 koje je u&#x010D;inkovito kod bolesnika s HES-om koji ne reagiraju na glukokortikoide. (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>) Kako je ve&#x0107; ranije spomenuto, jedan od dokazanih patofiziolo&#x0161;kih mehanizama nastanka Gleichova sindroma jest pretjerano stvaranje IL-5 pa reguliranje ovog interlukina mo&#x017E;e utjecati na kontroliranje upalnog odgovora.</p>
</sec>
<sec sec-type="other3">
<title>Zaklju&#x010D;ak</title>
<p>Kako je EAE vrlo rijedak poreme&#x0107;aj, va&#x017E;no je na temelju detaljne anamneze, klini&#x010D;ke slike i laboratorijske obrade posumnjati na mogu&#x0107;u dijagnozu. Tako&#x0111;er je izrazito va&#x017E;no u&#x010D;initi cjelokupnu dijagnosti&#x010D;ku obradu kako bi se isklju&#x010D;ili ostali mogu&#x0107;i uzroci hipereozinofilije i varijante HES-a. Bolesnika je potrebno redovito pratiti zbog razvoja mogu&#x0107;ih komplikacija u smislu o&#x0161;te&#x0107;enja unutarnjih organa. EAE je relativno nedavno opisan u literaturi, prognoza za bolesnike jo&#x0161; uvijek nije dovoljno istra&#x017E;ena, no izgleda da bolest ima povoljan klini&#x010D;ki tijek.</p>
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