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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">oncotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский онкологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian journal of oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-4861</issn><issn pub-type="epub">2312-3168</issn><publisher><publisher-name>Tomsk National Research Medical Сепtеr of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21294/1814-4861-2025-24-5-198-205</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-3871</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>СЛУЧАЙ ИЗ КЛИНИЧЕСКОЙ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CASE REPORTS</subject></subj-group></article-categories><title-group><article-title>Синдром Реклингхаузена–Энгеля. Скелетное проявление гиперпаратиреоидизма: обзор литературы и клиническое наблюдение</article-title><trans-title-group xml:lang="en"><trans-title>Recklinghausen–Engel syndrome and tumor-like skeletal lesions in hyperparathyroidism: literature review and 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/0000-0002-4066-2688</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильев</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasiliev</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васильев Николай Вольтович - доктор медицинских наук, старший научный сотрудник отделения общей и молекулярной патологии, Научно-исследовательский институт онкологии</p><p>SPIN-код: 1627-5226</p><p>Researcher ID (WOS): D-1144-2012</p><p>Author ID (Sсоpus): 57206755190</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Nikolay V. Vasiliev - MD, DSc, Senior Researcher, Department of General and Molecular Pathology, Cancer Research Institute</p><p>Researcher ID (WOS): D-1144-2012</p><p>Author ID (Sсоpus): 57206755190</p><p>5, Kooperativny St., Tomsk, 634009</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1195-4008</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вторушин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vtorushin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вторушин Сергей Владимирович - доктор медицинских наук, профессор, заместитель директора по научной работе и трансляционной медицине, руководитель отделения общей и молекулярной патологии, Научно-исследовательский институт онкологии, Томский НМЦ РАН; профессор кафедры патологической анатомии, ФГБОУ ВО «Сибирский государственный медицинский университет» Минздрава России (г. Томск, Россия)</p><p>SPIN-код: 2442-4720</p><p>Researcher ID (WOS): S-3789-2016</p><p>Author ID (Scopus): 26654562300</p><p>634009, Томск, пер. Кооперативный, 5; 634050, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Sergey V. Vtorushin - MD, DSc, Professor, Deputy Director for Research and Translational Medicine, Head of Department of General and Molecular Pathology, Cancer Research Institute, Tomsk NRMC, Russian Academy of Sciences; Professor, Pathology Department, Siberian SMU, MHR</p><p>Researcher ID (WOS): S-3789-2016</p><p>Author ID (Scopus): 26654562300</p><p>5, Kooperativny St., Tomsk, 634009; 2, Moskovsky trakt, Tomsk, 634050</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8676-2932</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хакимов</surname><given-names>Х. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Khakimov</surname><given-names>Kh. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хакимов Хуршед Илхомжонович - кандидат медицинских наук, младший научный сотрудник отделения общей онкологии</p><p>SPIN-код: 4799-2673</p><p>Researcher ID (WOS): AGB-1459-2022</p><p>Author ID (Scopus): 57996937000</p><p>634009, Томск, пер. Кооперативный, 5; 634050, Томск, Московский тракт, 2</p></bio><bio xml:lang="en"><p>Khurshed I. Khakimov - MD, PhD, Junior Researcher, Department of General Oncology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences; Assistant Professor, Department of Oncology</p><p>Researcher ID (WOS): AGB-1459-2022</p><p>Author ID (Scopus): 57996937000</p><p>5, Kooperativny St., Tomsk, 634009; 2, Moskovsky trakt, Tomsk, 634050</p></bio><email xlink:type="simple">khurshed.1319@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3882-4665</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анисеня</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Anisenya</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анисеня Илья Иванович - кандидат медицинских наук, старший научный сотрудник отделения общей онкологии</p><p>SPIN-код: 3003-8744</p><p>Researcher ID (WOS): D-8434-2012</p><p>Author ID (Scopus): 6507640381</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Ilya I. Anisenya - MD, PhD, Senior Researcher, Department of General Oncology, Cancer Research Institute</p><p>Researcher ID (WOS): D-8434-2012</p><p>Author ID (Scopus): 6507640381</p><p>5, Kooperativny St., Tomsk, 634009</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4098-6076</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лоос</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Loos</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лоос Дмитрий Максимович - патологоанатом отделения общей и молекулярной патологии</p><p>SPIN-код: 9355-4470</p><p>Author ID (Scopus): 57224221490</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Dmitriy M. Loos - MD, Pathologist, Department of General and Molecular Pathology, Cancer Research Institute</p><p>Author ID (Scopus): 57224221490</p><p>5, Kooperativny St., Tomsk, 634009</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2179-5685</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бокова</surname><given-names>У. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bokova</surname><given-names>U. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бокова Устинья Анатольевна - кандидат биологических наук, научный сотрудник лаборатории биологии опухолевой прогрессии, Научно-исследовательский институт онкологии</p><p>SPIN-код: 3546-0527</p><p>Researcher ID (WOS): AAX-9705-2021</p><p>Author ID (Scopus): 57226147765</p><p>634009, Томск, пер. Кооперативный, 5</p></bio><bio xml:lang="en"><p>Ustinia A. Bokova - PhD, Researcher, Laboratory of Tumor Progression Biology, Cancer Research Institute</p><p>Researcher ID (WOS): AAX-9705-2021</p><p>Author ID (Scopus): 57226147765</p><p>5, Kooperativny St., Tomsk, 634009</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт онкологии, Томский национальный исследовательский медицинский центр Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences; Siberian State Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт онкологии, Томский национальный исследовательский медицинский центр Российской академии наук; ФГБОУ ВО «Сибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences; Siberian State Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Научно-исследовательский институт онкологии, Томский национальный исследовательский медицинский центр Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>20</day><month>11</month><year>2025</year></pub-date><volume>24</volume><issue>5</issue><fpage>198</fpage><lpage>205</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Васильев Н.В., Вторушин С.В., Хакимов Х.И., Анисеня И.И., Лоос Д.М., Бокова У.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Васильев Н.В., Вторушин С.В., Хакимов Х.И., Анисеня И.И., Лоос Д.М., Бокова У.А.</copyright-holder><copyright-holder xml:lang="en">Vasiliev N.V., Vtorushin S.V., Khakimov K.I., Anisenya I.I., Loos D.M., Bokova U.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.siboncoj.ru/jour/article/view/3871">https://www.siboncoj.ru/jour/article/view/3871</self-uri><abstract><p>Цель исследования – представить обзор с современными сведениями о номенклатуре и терминологических особенностях синдрома Реклингхаузена–Энгеля (паратиреоидная остеодистрофия), его патогенезе, типичных морфологических и лучевых проявлениях. Уделить особое внимание вопросам дифференциальной диагностики бурой опухоли и гигантоклеточной опухоли скелета. Привеcти клинико-морфологические критерии разграничения этих состояний, систематизированные в виде сравнительной таблицы.</p><sec><title>Материал и методы</title><p>Материал и методы. Поиск соответствующих источников производился в системах Medline, PubMed, Elibrary и др. Из 100 найденных исследований 30 были использованы для написания систематического обзора. Приведен клинический случай резецированной бурой опухоли бедренной кости у 58-летнего мужчины с ранее не распознанным гиперпаратиреозом, продемонстрированы особенности морфологического диагноза и динамика заболевания.</p></sec><sec><title>Результаты</title><p>Результаты. Синдром Реклингхаузена–Энгеля (паратиреоидная остеодистрофия) представляет собой редкое, но клинически важное метаболическое поражение скелета, развивающееся на фоне гиперпаратиреоидизма. Он характеризуется выраженной остеокластической активностью, формированием кистозных очагов, субпериостальной резорбцией и так называемых бурых опухолей. Несмотря на доброкачественную природу, данный синдром часто имитирует агрессивные гигантоклеточные новообразования кости, что создает сложности в интерпретации клинико-рентгенологических и морфологических данных и повышает риск диагностических ошибок.</p></sec><sec><title>Заключение</title><p>Заключение. Обсуждаются трудности диагностики при отсутствии выраженной клинической симптоматики гиперпаратиреоза и подчеркивается ключевая роль патоморфолога в составе междисциплинарной команды. Своевременное выявление гиперсекреции паратгормона и радикальное удаление гиперплазированной или опухолевой паращитовидной железы обеспечивают регресс изменений костной ткани и благоприятный прогноз.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim of the study</title><p>Aim of the study: to provide a contemporary overview of the nomenclature and terminology of Recklinghausen– Engel syndrome (parathyroid osteodystrophy), its pathogenesis, and characteristic morphological and radiological manifestations. Special attention is paid to the differential diagnosis between brown tumor and skeletal giant cell tumor. The study aims to present the clinical and morphological criteria for distinguishing these conditions, systematized in a comparative table.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. A literature search was conducted in the Medline, PubMed, Elibrary, and other databases. Of the 100 identified publications, 30 were included in this systematic review. We report a case of a resected brown tumor of the femur in a 58-year-old man with previously undiagnosed hyperparathyroidism, detailing the morphological diagnostic features and the disease course.</p></sec><sec><title>Results</title><p>Results. Recklinghausen-Engel syndrome (parathyroid osteodystrophy) is a rare but clinically significant metabolic skeletal disorder that develops in the setting of hyperparathyroidism. It is characterized by marked osteoclastic activity, the formation of cystic lesions, subperiosteal resorption, and so-called brown tumors. Despite its benign nature, this syndrome often mimics aggressive giant cell bone tumors, which complicates the interpretation of clinical, radiological, and morphological data and increases the risk of diagnostic errors.</p></sec><sec><title>Conclusion</title><p>Conclusion. This article discusses the diagnostic challenges in the absence of overt clinical symptoms of hyperparathyroidism and emphasizes the key role of the pathomorphologist within a multidisciplinary team. Timely detection of parathyroid hormone hypersecretion and radical removal of the hyperplastic or neoplastic parathyroid gland lead to the regression of bone lesions and a favorable prognosis.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>гиперпаратиреоидизм</kwd><kwd>бурая опухоль</kwd><kwd>остеодистрофия</kwd><kwd>гигантоклеточная опухоль</kwd><kwd>остеокластическая резорбция</kwd><kwd>морфология костной ткани</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hyperparathyroidism</kwd><kwd>brown tumor</kwd><kwd>osteodystrophy</kwd><kwd>giant cell tumor</kwd><kwd>osteoclastic resorption</kwd><kwd>bone tissue morphology</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования РФ № 075-00490-25-04 (Регистрационный номер темы 125042105351-3)</funding-statement><funding-statement xml:lang="en">The study was carried out according to the state assignment of the Ministry of Science and Higher Education of the Russian Federation No. 075-00490-25-04 (Registration number 125042105351-3)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Diacinti D., Cipriani C., Biamonte F., Pepe J., Colangelo L., Kripa E., Iannacone A., Orlandi M., Guarnieri V., Diacinti D., Minisola S. 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