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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">10.20514/2226-6704-2025-15-6-461-467</article-id><article-id custom-type="edn" pub-id-type="custom">FNRNFA</article-id><article-id custom-type="elpub" pub-id-type="custom">avk-2134</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>Легочный гистиоцитоз из клеток Лангерганса: редкая патология в практике пульмонолога</article-title><trans-title-group xml:lang="en"><trans-title>Pulmonary Langerhans Cell Hysiocytosis: A Rare Pathology in The Practice of a Pulmonologist</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рванина</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Rvanina</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рванина Екатерина Сергеевна — ординатор 1-го обучения, кафедра госпитальной терапии лечебного факультета</p><p>Саратов </p></bio><bio xml:lang="en"><p>Ekaterina S. Rvanina — resident of the 1st training, Department of Hospital Therapy, Faculty of Medicine</p><p>Saratov </p></bio><email xlink:type="simple">puzanova.ekaterina2016@yandex.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/0000-0002-7464-826X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кароли</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karoli</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кароли Нина Анатольевна — д.м.н., профессор кафедры госпитальной терапии лечебного факультета</p><p>Саратов </p></bio><bio xml:lang="en"><p>Nina A. Karoli — professor of hospital therapy department of general medicine Department</p><p>Saratov </p></bio><email xlink:type="simple">karoli.73@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Саратовский государственный медицинский университет имени В.И. Разумовского» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saratov State Medical University named after V.I. Razumovsky, Ministry of Health of the Russian Federation</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>12</month><year>2025</year></pub-date><volume>15</volume><issue>6</issue><fpage>461</fpage><lpage>467</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рванина Е.С., Кароли Н.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Рванина Е.С., Кароли Н.А.</copyright-holder><copyright-holder xml:lang="en">Rvanina E.S., Karoli N.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/2134">https://www.medarhive.ru/jour/article/view/2134</self-uri><abstract><p>Легочный гистиоцитоз из клеток Лангерганса — редкое заболевание с коварным началом и неспецифическими проявлениями. В статье рассматриваются два клинических случая пациентов с редкой патологией — легочным гистиоцитозом из клеток Лангерганса. Описаны молодые пациенты, курильщики. У обоих пациентов были типичные рентгенологические признаки: кистозные и узловые образования. Диагноз был верифицирован морфологически. В первом случае на фоне прекращения курения отмечается положительная рентгенологическая динамика, во втором — пациентка не прекратила курить, в связи с выраженностью одышки, изменений при компьютерной томографии легких, был назначен преднизолон. На этом фоне значимой положительной динамики получено не было.</p></abstract><trans-abstract xml:lang="en"><p>Pulmonary Langerhans cell histiocytosis is a rare disease with insidious onset and nonspecific manifestations. The article discusses two clinical cases of patients with a rare pathology — pulmonary histiocytosis from Langerhans cells. Young patients and smokers are described. The diagnosis was verified morphologically. In the first case, positive X–ray dynamics was noted against the background of smoking cessation, in the second case, the patient did not stop smoking, due to the severity of shortness of breath, changes in computed tomography of the lungs, prednisone was prescribed. Against this background, there was no significant positive trend.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гистиоцитоз Х</kwd><kwd>редкие болезни</kwd><kwd>диагностика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Pulmonary Langerhans’ cell histiocytosis</kwd><kwd>rare diseases</kwd><kwd>diagnosis</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">Travis WD, Borok Z, Roum JH, et al. Pulmonary Langerhans cell granulomatosis (histiocytosis X). A clinicopathologic study of 48 cases. Am J Surg Pathol 1993; 17: 971–986</mixed-citation><mixed-citation xml:lang="en">Travis WD, Borok Z, Roum JH, et al. 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