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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">medbio</journal-id><journal-title-group><journal-title xml:lang="ru">Медико-биологические проблемы жизнедеятельности</journal-title><trans-title-group xml:lang="en"><trans-title>Medical and Biological Problems of Life Activity</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2088</issn><publisher><publisher-name>Республиканский научно-практический центр радиационной медицины и экологии человека</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.58708/2074-2088.2024-1(31)-132-135</article-id><article-id custom-type="elpub" pub-id-type="custom">medbio-356</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>ОБМЕН ОПЫТОМ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIENCE EXCHANGE</subject></subj-group></article-categories><title-group><article-title>Экстрамедуллярные поражения при плазмоклеточных пролиферациях. Клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Extramedullary lesions in plasma cell proliferations. 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/0000-0002-3488-6650</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козич</surname><given-names>Ж. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozich</surname><given-names>Zh. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">jannakozi@rambler.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/0000-0001-7029-5500</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мартинков</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Martinkov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">martinkov@rcrm.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковзик</surname><given-names>Н. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovzik</surname><given-names>N. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">qwertyacube09@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Близин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Blizin</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">Blizin68@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ГУ «РНПЦ радиационной медицины и экологии человека»</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>06</day><month>09</month><year>2024</year></pub-date><volume>0</volume><issue>1</issue><fpage>132</fpage><lpage>135</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козич Ж.М., Мартинков В.Н., Ковзик Н.И., Близин Д.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Козич Ж.М., Мартинков В.Н., Ковзик Н.И., Близин Д.А.</copyright-holder><copyright-holder xml:lang="en">Kozich Z.M., Martinkov V.N., Kovzik N.I., Blizin D.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://medbio.ejournal.by/jour/article/view/356">https://medbio.ejournal.by/jour/article/view/356</self-uri><abstract><p>Плазмоклеточные новообразования характеризуются опухолевой пролиферацией клона плазматических клеток, секретирующих патологический иммуноглобулин. К наиболее распространенным типам плазмоклеточных опухолей относят множественную миелому, предшествующее ей состояние – тлеющую миелому, моноклональную гаммапатию неуточненного значения, а также редко встречающиеся формы – солитарную плазмоцитому и экстрамедуллярные поражения с минимальным поражением костного мозга или без него. Среди экстрамедуллярных поражений выделяют несколько форм, одна из которых связана с костной тканью, а другая, внекостная, располагающаяся в мягких тканях или поражающая различные органы.</p><p>В статье представлен редкий клинический случай экстрамедуллярного поражения с минимальными изменениями костного мозга у пациентки 49 лет с моноклональной гаммапатией неуточненного значения и ревматоидным артритом. Описаны клинические проявления, методы диагностики, проводимая терапия и представлены данные литературы.</p></abstract><trans-abstract xml:lang="en"><p>Plasma cell neoplasms are characterized by tumor proliferation of a clone of plasma cells secreting pathological immunoglobulin. The most common types of plasma cell tumor include multiple myeloma, its predecessor smoldering myeloma, monoclonal gammopathy of undetermined significance, as well as rare forms – solitary plasmacytoma and extramedullary lesions with minimal or no bone marrow involvement. Among extramedullary lesions, several forms are distinguished, some of which are associated with bone tissue, and others are extraosseous, located in soft tissues or affecting various organs.</p><p>The article presents a rare clinical case of extramedullary lesions with minimal bone marrow changes in a 49-year-old female patient with monoclonal gammopathy of undetermined significance and rheumatoid arthritis. Literature data, clinical manifestations, features of diagnosis and therapy are presented.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>экстрамедуллярные поражения</kwd><kwd>множественная миелома</kwd><kwd>моноклональная гаммапатия неуточненного значения</kwd><kwd>лимфоузлы</kwd><kwd>лечение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>extramedullary lesions</kwd><kwd>multiple myeloma</kwd><kwd>monoclonal gammopathy of undetermined significance</kwd><kwd>lymph nodes</kwd><kwd>treatment</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">The WHO classification of tumours of haematopoietic and lymphoid tissues / Campo E. [et al.] – Lyon: International agency for research on cancer, 2008. – Vol. 2. – P. 439.</mixed-citation><mixed-citation xml:lang="en">The WHO classification of tumours of haematopoietic and lymphoid tissues / Campo E. 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