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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">avk</journal-id><journal-title-group><journal-title xml:lang="ru">Архивъ внутренней медицины</journal-title><trans-title-group xml:lang="en"><trans-title>The Russian Archives of Internal Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-6704</issn><issn pub-type="epub">2411-6564</issn><publisher><publisher-name>“SINAPS” LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20514/2226-6704-2026-16-4-305-311</article-id><article-id custom-type="edn" pub-id-type="custom">RQFQUL</article-id><article-id custom-type="elpub" pub-id-type="custom">avk-2340</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>РАЗБОР КЛИНИЧЕСКИХ СЛУЧАЕВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANALYSIS OF CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Болезнь Кикучи-Фуджимото на фоне первичного иммунодефицита и рассеянного склероза: клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Kikuchi-Fujimoto’s Disease on The Background of Primary Immunodeficiency and Multiple Sclerosis: A Clinical Case</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7839-1660</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аранович</surname><given-names>Э. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Aranovich</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аранович Элина Викторовна — заместитель генерального директора по лечебной работе, врач-онколог, врач-терапевт</p><p>Москва</p></bio><bio xml:lang="en"><p>Elina V. Aranovich — Deputy General Director for Medical Work, Oncologist, Internist</p><p>Moscow</p></bio><email xlink:type="simple">aranovich.ev@yusupovs.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0384-0596</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лисовой</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lisovoy</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лисовой Вячеслав Анатольевич — к.м.н., онколог, хирург</p><p>Москва</p></bio><bio xml:lang="en"><p>Vyacheslav A. Lisovoy — Candidate of Medical Sciences, oncologist, surgeon</p><p>Moscow</p></bio><email xlink:type="simple">viachaslau.lisavy@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-5335-8803</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фефелова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fefelova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фефелова Валерия Александровна  — врач-ординатор по специальности терапия пропедевтики внутренних болезней № 2 Института клинической медицины</p><p>Москва</p></bio><bio xml:lang="en"><p>Valeria A. Fefelova — resident doctor specializing in the therapy of propedeutics of Internal Medicine No. 2 of the Clinical Medicine Institute</p><p>Moscow</p></bio><email xlink:type="simple">fefeloval98@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Юсуповская больница (OOO «Нейро-клиника»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yusupov Hospital (LLC «Neuro-Clinic»)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «РНИМУ им. Н.И. Пирогова» Минздрава РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FSAEI of HE «RNRMU named after N.I. Pirogov of the Ministry of Health of the Russian Federation»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>13</day><month>08</month><year>2026</year></pub-date><volume>16</volume><issue>4</issue><fpage>305</fpage><lpage>311</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Аранович Э.В., Лисовой В.А., Фефелова В.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Аранович Э.В., Лисовой В.А., Фефелова В.А.</copyright-holder><copyright-holder xml:lang="en">Aranovich E.V., Lisovoy V.A., Fefelova V.A.</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.medarhive.ru/jour/article/view/2340">https://www.medarhive.ru/jour/article/view/2340</self-uri><abstract><p>Впервые описано сочетание болезни Кикучи-Фуджимото с общей вариабельной иммунной недостаточностью и рассеянным склерозом. Наличие у пациентки первичного иммунодефицита, сопровождающегося частыми и тяжелыми обострениями хронических заболеваний, привело к затяжному диагностическому поиску. Случай подчеркивает важность своевременного морфологического исследования при стойкой лимфаденопатии, даже у пациентов с известными иммунными нарушениями.</p></abstract><trans-abstract xml:lang="en"><p>For the first time, a combination of Kikuchi-Fujimoto’s disease with general variable immune deficiency and multiple sclerosis has been described. The patient’s primary immunodeficiency, accompanied by frequent and severe exacerbations of chronic diseases, led to a protracted diagnostic search. The case highlights the importance of timely morphological examination in persistent lymphadenopathy, even in patients with known immune disorders.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Болезнь Кикучи-Фуджимото</kwd><kwd>гистиоцитарный некротизирующий лимфаденит</kwd><kwd>первичный иммунодефицит</kwd><kwd>общая вариабельная иммунная недостаточность</kwd><kwd>рассеянный склероз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Kikuchi-Fujimoto’s disease</kwd><kwd>histiocytic necrotizing lymphadenitis</kwd><kwd>primary immunodeficiency</kwd><kwd>general variable immune deficiency</kwd><kwd>multiple  sclerosis</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">Ковригина А.М. Сравнительная патоморфологическая характеристика изменений в лимфатических узлах при болезни Кикучи—Фуджимото и аутоиммунных заболеваниях, протекающих с лимфаденопатией (собственные данные). 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