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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">nodgo</journal-id><journal-title-group><journal-title xml:lang="ru">Российский журнал детской гематологии и онкологии (РЖДГиО)</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Pediatric Hematology and Oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2311-1267</issn><issn pub-type="epub">2413-5496</issn><publisher><publisher-name>LTD “Graphica”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21682/2311-1267-2026-13-1-98-103</article-id><article-id custom-type="elpub" pub-id-type="custom">nodgo-1268</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>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Высокодифференцированная нейроэндокринная опухоль желудка у пациента 16 лет</article-title><trans-title-group xml:lang="en"><trans-title>Highly differentiated gastric neuroendocrine tumor in a 16-year-old patient</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9372-5195</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богданова</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanova</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-эндоскопист эндоскопического отделения</p><p>115522, Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Endoscopist of the Department of Endoscopy</p><p>23 Kashirskoe Shosse, Moscow, 115522</p></bio><email xlink:type="simple">linakr@bk.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/0000-0003-4246-0200</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савосин</surname><given-names>Р. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Savosin</surname><given-names>R. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач-эндоскопист эндоскопического отделения</p><p>115522, Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Endoscopist of the Department of Endoscopy</p><p>23 Kashirskoe Shosse, Moscow, 115522</p></bio><email xlink:type="simple">para4242@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0634-8166</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рыбакова</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rybakova</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., врач-детский онколог детского онкологического отделения хирургических методов лечения НИИ детской онкологии и гематологии им. акад. РАМН Л.А. Дурнова</p><p>115522, Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Cand. of Sci. (Med.), Pediatric Oncologist of the Pediatric Oncology Department of Surgical Treatment Methods at the Research Institute of Pediatric Oncology and Hematology named after Academician of the Russian Academy of Medical Sciences L.A. Durnov</p><p>23 Kashirskoe Shosse, Moscow, 115522</p></bio><email xlink:type="simple">kalibridiana@mail.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/0009-0002-9802-1119</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кувшинов</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuvshinov</surname><given-names>Yu. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор, научный консультант, врач-эндоскопист эндоскопического отделения</p><p>115522, Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Dr. of Sci. (Med.), Professor, Scientific Consultant, Endoscopist of the Department of Endoscopy</p><p>23 Kashirskoe Shosse, Moscow, 115522</p></bio><email xlink:type="simple">kuv_50@mail.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/0000-0002-4550-2069</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Делекторская</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Delektorskaya</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.м.н., профессор, ведущий научный сотрудник, врач-патологоанатом патологоанатомического отделения</p><p>115522, Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Dr. of Sci. (Med.), Professor, Leading Researcher, Pathologist of the Pathology Department </p><p>23 Kashirskoe Shosse, Moscow, 115522</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/0000-0002-5548-1724</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маркович</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Markovich</surname><given-names>А. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.м.н., старший научный сотрудник, врач-онколог поликлинического отделения</p><p>115522, Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Cand. of Sci. (Med.), Senior researcher, Oncologist of the Polyclinic Department</p><p>23 Kashirskoe Shosse, Moscow, 115522</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>«НМИЦ онкологии им. Н.Н. Блохина» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Blokhin National Medical Research Centre of Oncology, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>03</day><month>04</month><year>2026</year></pub-date><volume>13</volume><issue>1</issue><fpage>98</fpage><lpage>103</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Богданова А.О., Савосин Р.С., Рыбакова Д.В., Кувшинов Ю.П., Делекторская В.В., Маркович А.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Богданова А.О., Савосин Р.С., Рыбакова Д.В., Кувшинов Ю.П., Делекторская В.В., Маркович А.А.</copyright-holder><copyright-holder xml:lang="en">Bogdanova A.O., Savosin R.S., Rybakova D.V., Kuvshinov Y.P., Delektorskaya V.V., Markovich А.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://journal.nodgo.org/jour/article/view/1268">https://journal.nodgo.org/jour/article/view/1268</self-uri><abstract><p>В статье представлен клинический случай нейроэндокринной опухоли желудка у пациента 16 лет, которая чрезвычайно редко встречается в детском и подростковом возрасте. В зарубежной литературе описано лишь 17 случаев нейэроэндокринных опухолей желудка, отечественных публикаций на эту тему нет. В связи с редкостью данной опухоли у детей и подростков и отсутствием четких критериев лечения специфической терапии в настоящее время не разработано, оптимальным способом лечения является максимально полное хирургическое удаление опухоли.</p></abstract><trans-abstract xml:lang="en"><p>We would like to present a clinical case of an extremely rare gastric tumor in a 16-year-old adolescent – gastric neuroendocrine tumor. Only 17 cases of gastric neuroendocrine tumors have been described in foreign literature, and there are no domestic publications on this topic. Due to the rarity of this tumor in children and adolescents and the lack of clear criteria for treatment no specific therapy has been developed at the present time, and the optimal treatment is maximal surgical removal of the tumor.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нейроэндокринная опухоль</kwd><kwd>карциноид</kwd><kwd>эндоскопическое удаление</kwd><kwd>эндоскопическая резекция слизистой оболочки</kwd><kwd>лечение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neuroendocrine tumor</kwd><kwd>carcinoid</kwd><kwd>endoscopic removal</kwd><kwd>endoscopic mucosal resection</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">Niederle M.B., Hackl M., Kaserer K., Niederle B. 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