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<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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Oncopathology</journal-id><journal-title-group><journal-title xml:lang="en">Oncopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкопатология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2618-7019</issn><issn publication-format="electronic">3034-3534</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">708419</article-id><article-id pub-id-type="doi">10.17650/2619-7019-2018-1-1-33-39</article-id><article-id pub-id-type="edn">KAEGLK</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Case from practice</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Случай из практики</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Recurrent low-grade fibromyxoid sarcoma in the soft tissue of the leg</article-title><trans-title-group xml:lang="ru"><trans-title>Рецидивирующая фибромиксоидная саркома низкой степени злокачественности мягких тканей нижней конечности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gorban'</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Горбань</surname><given-names>Н. А.</given-names></name></name-alternatives><email>perovanina@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kleina</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Клеина</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abv@abvpress.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pecherskaya</surname><given-names>M. S.</given-names></name><name xml:lang="ru"><surname>Печерская</surname><given-names>М. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abv@abvpress.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Svyativoda</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Святивода</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abv@abvpress.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fedosyuk</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Федосюк</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abv@abvpress.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Il'ina</surname><given-names>O. V.</given-names></name><name xml:lang="ru"><surname>Ильина</surname><given-names>О. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abv@abvpress.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Burdenko Main Military Clinical Hospital, Ministry of Defence of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ«Главный военный клинический госпиталь им. акад. Н.Н. Бурденко» Минобороны России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-02-18" publication-format="electronic"><day>18</day><month>02</month><year>2018</year></pub-date><volume>1</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>33</fpage><lpage>39</lpage><history><date date-type="received" iso-8601-date="2026-06-09"><day>09</day><month>06</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, АБВ-пресс</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://oncopathology.abvpress.ru/2618-7019/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://oncopathology.abvpress.ru/2618-7019/article/view/708419">https://oncopathology.abvpress.ru/2618-7019/article/view/708419</self-uri><abstract xml:lang="en"><p>Low-grade fibromyxoid sarcoma is a relatively rare tumor of deep soft tissue. The difficulties of diagnostics, morphological, immunohisto-chemical and “typical” clinical pictures of this pathology are considered in the article. An algorithm for the differential diagnosis of low-grade fibromyxoid sarcoma and myxoid liposarcoma is given on the example of the clinical case in which the final diagnosis was verified after 40 years from the manifestation of the disease.</p></abstract><trans-abstract xml:lang="ru"><p>Фибромиксоидная саркома низкой степени злокачественности - относительно редкая опухоль глубоких мягких тканей. В статье рассматриваются сложности диагностики, морфологическая, иммуногистохимическая и «типичная» клиническая картина этой патологии. Приводится алгоритм дифференциальной диагностики фибромиксоидной саркомы низкой степени злокачественности и миксоидной липосаркомы на примере клинического случая, в котором окончательный диагноз был верифицирован спустя 40лет от манифестации заболевания.</p></trans-abstract><kwd-group xml:lang="en"><kwd>low-grade fibromyxoid sarcoma</kwd><kwd>hyalinizing spindle cell tumor</kwd><kwd>Myxoid liposarcoma</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фибромиксоидная саркома низкой степени злокачественности</kwd><kwd>гиалинизирующая веретеноклеточная опухоль</kwd><kwd>миксоидная липосаркома</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Fletcher K., Christopher D.M. World Health Organization classification of tumours of soft tissue and bone. 4th edn. IARC Press: Lyon,2013.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Evans H.L. Low-grade fibromyxoid sarcoma. 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