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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">oncotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский онкологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian journal of oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-4861</issn><issn pub-type="epub">2312-3168</issn><publisher><publisher-name>Tomsk National Research Medical Сепtеr of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21294/1814-4861-2025-24-4-186-193</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-3787</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СЛУЧАЙ ИЗ КЛИНИЧЕСКОЙ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CASE REPORTS</subject></subj-group></article-categories><title-group><article-title>Струмальный карциноид яичника гигантских размеров с отдаленным метастазом в полость правого предсердия: редкий клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Giant stromal ovarian carcinoid with distant metastasis to the right atrium: a case report</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6562-7574</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Диль</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Dil</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Диль Ольга Сергеевна, младший научный сотрудник института онкологии и нейрохирургии </p><p>630055, г. Новосибирск, ул. Речкуновская, 15 </p></bio><bio xml:lang="en"><p>Olga S. Dil, MD, Junior Researcher, Institute of Oncology and Neurosurgery </p><p>15, Rechkunovskaya st., Novosibirsk, 630055</p></bio><email xlink:type="simple">lyabisheva.os@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8194-2811</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышова</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshova</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернышова Алена Леонидовна, доктор медицинских наук, профессор РАН, профессор кафедры онкологии; директор института онкологии и нейрохирургии </p><p>Author ID (Scopus): 55220758100. Researcher ID (WOS): C-8608-2012 </p><p>630055, г. Новосибирск, ул. Речкуновская, 15 </p><p>630091, г. Новосибирск, Красный пр-т, 52 </p></bio><bio xml:lang="en"><p>Alena L. Chernyshova, MD, DSc, Professor of Russian Academy of Sciences, Professor, Department of Oncology; Director, Institute of Oncology and Neurosurgery </p><p>Author ID (Scopus): 55220758100. Researcher ID (WOS): C-8608-2012  </p><p>15, Rechkunovskaya st., Novosibirsk, 630055</p><p>52, Krasny prospect, Novosibirsk, 630091 </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0829-0340</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черняков</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyakov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черняков Александр Алексеевич, младший научный сотрудник отделения общей онкологии</p><p>634009, г. Томск, пер. Кооперативный, 5 </p></bio><bio xml:lang="en"><p>Alexander A. Chernyakov, MD, Junior Researcher, Oncologist, Department of General Oncology</p><p>5, Kooperativny st., Tomsk, 634009 </p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5926-2601</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трущук</surname><given-names>Ю. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Trushchuk</surname><given-names>Yu. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трущук Юлия Михайловна, онколог отделения онкологии № 4 </p><p>634009, г. Томск, пер. Кооперативный, 5 </p></bio><bio xml:lang="en"><p>Yulia M. Trushchuk, MD, Oncologist, Oncology Department No. 4</p><p>5, Kooperativny st., Tomsk, 634009 </p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлюкова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlyukova</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павлюкова Елена Николаевна, доктор медицинских наук, профессор, заведующая научно-исследовательским отделением лучевой и инструментальной диагностики</p><p>630055, г. Новосибирск, ул. Речкуновская, 15 </p></bio><bio xml:lang="en"><p>Elena N. Pavlyukova, MD, DSc, Professor, Head of the Research Department of Radiation and Instrumental Diagnostics </p><p>15, Rechkunovskaya st., Novosibirsk, 630055</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Усов</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Usov</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Усов Владимир Юрьевич, доктор медицинских наук, профессор, главный научный сотрудник научно-исследовательского отдела лучевой и инструментальной диагностики</p><p>630055, г. Новосибирск, ул. Речкуновская, 15 </p></bio><bio xml:lang="en"><p>Vladimir Yu. Usov, MD, DSc, Professor, Chief Researcher, Research Department of Radiation and Instrumental Diagnostics </p><p>15, Rechkunovskaya st., Novosibirsk, 630055</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышова</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshova</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернышова Арина Евгеньевна, студентка, медицинский факультет </p><p>199034, г. Санкт-Петербург, Университетская набережная, 7/9 </p></bio><bio xml:lang="en"><p>Arina E. Chernyshova, student, Faculty of Medicine </p><p>7/9, Universitetskaya Embankment, Saint Petersburg, 199034 </p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр им. акад. Е.Н. Мешалкина» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>E.N. Meshalkin National Medical Research Center, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр им. акад. Е.Н. Мешалкина» Минздрава России ; ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>E.N. Meshalkin National Medical Research Center, Ministry of Health of Russia ; Novosibirsk State Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт онкологии, Томский национальный исследовательский медицинский центр Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk national Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>10</month><year>2025</year></pub-date><volume>24</volume><issue>4</issue><fpage>186</fpage><lpage>193</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Диль О.С., Чернышова А.Л., Черняков А.А., Трущук Ю.М., Павлюкова Е.Н., Усов В.Ю., Чернышова А.Е., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Диль О.С., Чернышова А.Л., Черняков А.А., Трущук Ю.М., Павлюкова Е.Н., Усов В.Ю., Чернышова А.Е.</copyright-holder><copyright-holder xml:lang="en">Dil O.S., Chernyshova A.L., Chernyakov A.A., Trushchuk Y.M., Pavlyukova E.N., Usov V.Y., Chernyshova A.E.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.siboncoj.ru/jour/article/view/3787">https://www.siboncoj.ru/jour/article/view/3787</self-uri><abstract><p>Введение. Карциноидные опухоли яичников составляют группу редких злокачественных новообразований с частотой встречаемости среди всех опухолей яичников 0,1 % и от 0,8 до 5 % – среди карциноидных опухолей. Струмальный карциноид – это форма монодермальной тератомы (струмы) яичников, состоящая из нормальной ткани щитовидной железы, смешанной с нейроэндокринной опухолью (карциноидом). Большинство из них являются доброкачественными, однако некоторые могут иметь злокачественный компонент, и такое новообразование следует лечить как опухоль яичников с низким потенциалом злокачественности. Описание клинического случая. В статье описан случай струмального карциноида яичника гигантских размеров с отдаленным метастазом в полость правого предсердия в виде флотирующего тромба и его радикального хирургического лечения, проведенного в два этапа. Заключение. Данный клинический случай демонстрирует важность всесторонней предоперационной диагностики, интраоперационной оценки и гистопатологического диагноза. При данной патологии, протекающей чаще бессимптомно, различные диагностические обследования имеют низкую специфичность и чувствительность, и в большинстве случаев диагноз устанавливается на основании результатов послеоперационного патологоанатомического исследования.</p></abstract><trans-abstract xml:lang="en"><p>Background. Ovarian carcinoid tumors are rare, representing about 0.1 % among all ovarian tumors and 0.8 to 5 % of carcinoid tumors. Strumal carcinoid is a rare type of ovarian teratoma composed of normal thyroid tissue (struma) and a carcinoid (neuroendocrine) tumor. While most cases are benign, some may exhibit malignant features, prompting treatment as a low-potential malignancy. Description of the clinical case. We report a case of giant ovarian strumal carcinoid with distant metastasis in the right atrium presenting as a free-floating thrombus. The patient underwent two-stage radical surgery. Conclusion. This case report demonstrates the importance of comprehensive preoperative clinical diagnosis, intraoperative assessment and histopathological diagnosis. With this pathology, which is often asymptomatic, various diagnostic examinations have low specificity and sensitivity, and in most cases the diagnosis is based on the results of a postoperative histology examination.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>карциноид яичника</kwd><kwd>струмальный карциноид</kwd><kwd>монодермальный карциноид яичников</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ovarian carcinoid</kwd><kwd>strumal carcinoid</kwd><kwd>monodermal ovarian carcinoid</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Noh H.K., Kwon B.S., Kim Y.H., Lee N.K., Choi K.U., Suh D.S.,Lee D.H., Kim K.H. 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