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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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">616</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2022-21-4-111-117</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL OBSERVATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">A rare experience of treating calcifying nested stromal tumor of the liver in children</article-title><trans-title-group xml:lang="ru"><trans-title>Редкий опыт лечения кальцифицирующей гнездной стромальной опухоли печени у детей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1387-209X</contrib-id><name-alternatives><name xml:lang="en"><surname>Akhaladze</surname><given-names>D. G.</given-names></name><name xml:lang="ru"><surname>Ахаладзе</surname><given-names>Д. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><bold>Dmitry G. Akhaladze</bold>, Dr. Med. Sci., Head of Thoracoabdominal Surgery Group</p><p><italic>117997, Moscow, Samory Mashela St., 1</italic></p></bio><bio xml:lang="ru"><p><bold>Ахаладзе Дмитрий Гурамович</bold>, д-р мед. наук, руководитель отдела торакоабдоминальной хирургии</p><p><italic>117997, Москва, ул. Саморы Машела, 1</italic></p></bio><email>d.g.akhaladze@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tuponogov</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Тупоногов</surname><given-names>С. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Yekaterinburg</italic></p></bio><bio xml:lang="ru"><p><italic>Екатеринбург</italic></p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chvanova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Чванова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Yekaterinburg</italic></p></bio><bio xml:lang="ru"><p><italic>Екатеринбург</italic></p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5691-2522</contrib-id><name-alternatives><name xml:lang="en"><surname>Rabaev</surname><given-names>G. S.</given-names></name><name xml:lang="ru"><surname>Рабаев</surname><given-names>Г. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Moscow</italic></p></bio><bio xml:lang="ru"><p><italic>Москва</italic></p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8416-8238</contrib-id><name-alternatives><name xml:lang="en"><surname>Kotov</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Котов</surname><given-names>В. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Moscow</italic></p></bio><bio xml:lang="ru"><p><italic>Москва</italic></p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4451-3233</contrib-id><name-alternatives><name xml:lang="en"><surname>Grachev</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Грачев</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>Moscow</italic></p></bio><bio xml:lang="ru"><p><italic>Москва</italic></p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of the Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Regional Children's Clinical Hospital</institution></aff><aff><institution xml:lang="ru">ГАУЗ СО «Областная детская клиническая больница»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian Children’s Clinical Hospital of the N.I. Pirogov Russian National Research Medical University of Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">Российская детская клиническая больница ФГБОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-12-26" publication-format="electronic"><day>26</day><month>12</month><year>2022</year></pub-date><volume>21</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>111</fpage><lpage>117</lpage><history><date date-type="received" iso-8601-date="2022-06-24"><day>24</day><month>06</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-09-07"><day>07</day><month>09</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hemoncim.com/jour/article/view/616">https://hemoncim.com/jour/article/view/616</self-uri><abstract xml:lang="en"><p>Calcifying nested stromal epithelial tumor of the liver is a rare entity among neoplasms of the hepatobiliary zone in children and adults. In most cases, a radical resection of the tumor is the main treatment. In this article, we review the existing literature on calcifying nested stromal epithelial tumor of the liver and report two clinical cases of this rare tumor in children treated at two major pediatric oncology clinics. The patients' parents gave their consent to the use of their children's data, including photographs, for research purposes and in publications.</p></abstract><trans-abstract xml:lang="ru"><p>Кальцифицирующая гнездная стромально-эпителиальная опухоль печени является редкой нозологической группой среди новообразований гепатобилиарной зоны у детей и взрослых. В большинстве случаев радикальное удаление опухоли является основным методом лечения. В данной статье мы приводим обзор доступных литературных источников, посвященных кальцифицирующей гнездной стромально-эпителиальной опухоли печени, и описание 2 клинических наблюдений пациентов детского возраста с этой редкой опухолью, встретившихся в 2 крупных детских онкологических клиниках. Родители пациентов дали согласие на использование информации, в том числе фотографий детей, в научных исследованиях и публикациях.</p></trans-abstract><kwd-group xml:lang="en"><kwd>liver resections</kwd><kwd>calcifying nested stromal epithelial tumor</kwd><kwd>liver</kwd><kwd>hepatobiliary surgery</kwd><kwd>children</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>резекции печени</kwd><kwd>кальцифицирующая гнездная стромально-эпителиальная опухоль</kwd><kwd>печень</kwd><kwd>гепатобилиарная хирургия</kwd><kwd>дети</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">1. Yan W., Jing Z., Huang W.-B., Qiu R., Ma H.-H., Zhou X.-J. Calcifying nested stroma-epithelial tumor of the liver: a case report and review of literature. Int J Surg Pathol 2011; 19 (2): 268–72.</mixed-citation><mixed-citation xml:lang="ru">Yan W., Jing Z., Huang W.-B., Qiu R., Ma H.-H., Zhou X.-J. 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