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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" article-type="research-article" dtd-version="1.1d1" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher">Medical Scientific Bulletin of Central Chernozemye (Naučno-medicinskij vestnik Centralʹnogo Černozemʹâ)</journal-id><journal-title-group><journal-title>Medical Scientific Bulletin of Central Chernozemye (Naučno-medicinskij vestnik Centralʹnogo Černozemʹâ)</journal-title></journal-title-group><issn publication-format="electronic">1990-472X</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный медицинский университет имени Н.Н. Бурденко" Министерства здравоохранения Российской Федерации</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">11074</article-id><article-id pub-id-type="doi">10.18499/1990-472X-2025-26-4-%p</article-id><article-categories><subj-group subj-group-type="heading"><subject></subject></subj-group></article-categories><title-group><article-title>DIFFICULTIES IN DIAGNOSIS OF IDIOPATHIC PULMONARY HEMOSIDEROSIS IN A POLYMORBID PATIENT (CLINICAL OBSERVATION)</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Karpukhina</surname><given-names>Elena Petrovna</given-names></name><bio>&lt;p&gt;Candidate of Medical Sciences, Associate Professor&lt;/p&gt;</bio><email>karpukhina@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Vasilyeva</surname><given-names>Ludmila Valentinovna</given-names></name><bio>&lt;p&gt;Doctor of Medical Sciences, Professor, Head of the Department of Internal Medicine Propaedeutics&lt;/p&gt;</bio><email>ludmilvasil@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Malyukov</surname><given-names>Dmitry Andreevich</given-names></name><bio>&lt;p&gt;Candidate of Medical Sciences, Associate Professor&lt;/p&gt;</bio><email>mdm112@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Zolotareva</surname><given-names>Maria</given-names></name><bio>&lt;p&gt;Candidate of Medical Sciences, Associate Professor&lt;/p&gt;</bio><email>zolotaryva85@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff id="aff-1">N.N. Burdenko Voronezh State Medical University of the Russian Ministry of Health</aff><pub-date date-type="epub" iso-8601-date="2025-12-30" publication-format="electronic"><day>30</day><month>12</month><year>2025</year></pub-date><volume>26</volume><issue>4</issue><fpage>109</fpage><lpage>112</lpage><history><pub-date date-type="received" iso-8601-date="2026-01-26"><day>26</day><month>01</month><year>2026</year></pub-date></history><permissions><copyright-statement>Copyright © 2025, Medical Scientific Bulletin of Central Chernozemye (Naučno-medicinskij vestnik Centralʹnogo Černozemʹâ)</copyright-statement><copyright-year>2025</copyright-year></permissions><abstract>&lt;p&gt;Idiopathic pulmonary hemosiderosis is a rare disease of unclear etiology with the development of alveolar-hemorrhagic syndrome. The presented clinical case demonstrates the difficulties in diagnosing this clinical condition in a patient with concomitant cardiovascular pathology.&lt;/p&gt;</abstract><kwd-group xml:lang="en"><kwd>idiopathic pulmonary hemosiderosis, polymorbidity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>идиопатический гемосидероз легких, полиморбидность</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Saha BK. Idiopathic pulmonary hemosiderosis: A state of the art review. Respir Med. 2021; 176:106234. DOI: 10.1016/j.rmed.2020.106234.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2. Fontenot A.P., Schwarz M.I. Alveolar Hemorrhage Syndromes// Baums Textbook of Pulmonary Diseases.7th ed. / Tds J.D. Crapo et al. 2004; 623. DOI: 10.1186/cc3717</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>3. Aiman A, Saha S, Chong WH, Saha BK. 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