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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">tumors</journal-id><journal-title-group><journal-title xml:lang="ru">Malignant tumours</journal-title><trans-title-group xml:lang="en"><trans-title>Malignant tumours</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2224-5057</issn><issn pub-type="epub">2587-6813</issn><publisher><publisher-name>Rosoncoweb</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18027/2224-5057-2024-014</article-id><article-id custom-type="elpub" pub-id-type="custom">tumors-1330</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 СЛУЧАИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL NOTES</subject></subj-group></article-categories><title-group><article-title>Случай развития рака в оставшейся части желудка после гастрошунтирования</article-title><trans-title-group xml:lang="en"><trans-title>A clinical case: gastric cancer after gastric bypass</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1178-5205</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Анищенко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Anishchenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Владимирович Анищенко</p><p>630091; ул. Коммунистическая, 17 / 1; 630091; ул. Красный проспект, 52; Новосибирск</p></bio><bio xml:lang="en"><p>Vladimir Vladimirovich Anishchenko</p><p>630099; 17 / 1, Kommunisticheskaya Str.; 630091; 52 Krasny prospect Str.; Novosibirsk</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/0000-0002-5296-9767</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ким</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kim</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Денис Александрович Ким</p><p>630091; ул. Коммунистическая, 17 / 1; 630091; ул. Красный проспект, 52; Новосибирск</p></bio><bio xml:lang="en"><p>Denis Aleksandrovich Kim</p><p>630099; 17 / 1, Kommunisticheskaya Str.; 630091; 52 Krasny prospect Str.; Novosibirsk</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/0000-0003-4006-7560</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полоз</surname><given-names>Т. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Poloz</surname><given-names>T. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Львовна Полоз</p><p>630091; ул. Коммунистическая, 17 / 1; 630004; ул. Владимировский спуск, 2а; Новосибирск</p></bio><bio xml:lang="en"><p>Tatyana Lvovna Poloz</p><p>630099; 17 / 1, Kommunisticheskaya Str.; 630004; 2a Vladimirovsky spusk Str.; Novosibirsk</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/0009-0000-2913-5847</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цзин</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Tszin</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артем Олегович Цзин</p><p>630091; ул. Красный проспект, 52; Новосибирск</p></bio><bio xml:lang="en"><p>Artem Olegovich Tszin</p><p>630091; 52 Krasny prospect Str.; Novosibirsk</p></bio><email xlink:type="simple">aotszin@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9401-5737</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Титов</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Titov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Евгеньевич Титов</p><p>630559; Научно-производственная зона, 36; Новосибирская область, р. п. Кольцово; 630090; просп. акад. Лаврентьева, 8 / 2; Новосибирск</p></bio><bio xml:lang="en"><p>Sergei Evgenevich Titov</p><p>630559; 36 Nauchno-Proizvodstvennaya zona; Novosibirsk Reg.; Koltsovo vil.; 630090; 8 / 2 Acad. Lavrentiev Ave.; Novosibirsk</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АО Медицинский центр «АВИЦЕННА». Группы компаний Мать и Дитя; ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Medical Center AVICENNA; Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО Медицинский центр «АВИЦЕННА». Группы компаний Мать и Дитя; ЧУЗ «Клиническая больница «РЖД-Медицина»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Medical Center AVICENNA; Clinical Hospital “Russian Railways-Medicine»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>О «Вектор-Бест»; ФГБУН «Институт молекулярной и клеточной биологии» Сибирского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>“Veсtor-Best»; Institute of Molecular and Cellular Biology of the Siberian Department of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>22</day><month>07</month><year>2024</year></pub-date><volume>14</volume><issue>2</issue><fpage>87</fpage><lpage>94</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Анищенко В.В., Ким Д.А., Полоз Т.Л., Цзин А.О., Титов С.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Анищенко В.В., Ким Д.А., Полоз Т.Л., Цзин А.О., Титов С.Е.</copyright-holder><copyright-holder xml:lang="en">Anishchenko V.V., Kim D.A., Poloz T.L., Tszin A.O., Titov S.E.</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.malignanttumors.org/jour/article/view/1330">https://www.malignanttumors.org/jour/article/view/1330</self-uri><abstract><sec><title>   Актуальность</title><p>   Актуальность: Рак желудка является одним из наиболее распространенных онкозаболеваний в мире, занимая 5 место по заболеваемости и 3 место в структуре смертности от онкозаболеваний. На протяжении длительного времени вопросы, затрагивающие риск развития злокачественных новообразований после бариатрических вмешательств, остаются актуальными. Наше наблюдение посвящено диагностике и лечению больной раком оставшейся части желудка после гастрошунтирования.</p><p>   Описание клинического случая: Пациентка 62 лет ранее оперирована: 13. 07. 2016 г. — лапароскопическое гастрошунтирование по Ру по поводу морбидного ожирения, 11. 09. 2019 г. — лапароскопическая установка пластины «Кардиоплант» на малый желудок в связи с рецидивным набором массы тела. В последующем с 2020 года у пациентки – явления анастомозита, дисфагии и гастроэзофагеального рефлюкса. Курсы консервативной терапии, сеансы баллоннойдилатации гастроэнтероанастомоза и ряд повторных операций, включающих удаление пластины, резекцию гастроэнтероанастомоза, значимого эффекта не оказали. Пациентке при каждом обращении проводились комплексные исследования, включая МСКТ брюшной полости, онкомаркеры и исследования биопсийного материала слизистой желудка и гастроэнтероанастомоза. В результате гистологических исследований фрагментов слизистой желудка и гастроэнтероанастомоза признаков злокачественного новообразования не обнаружено. После обращения в медицинский центр Авиценна в 2022 году проведен молекулярно-генетический анализ, при котором панель мРНК более всего соответствовала злокачественному новообразованию. 20. 12. 2022 г. выполнена экстирпация оставшейся части желудка с резекцией пищевода. Диагноз рака подтвержден данными гистологического и иммуногистохимического исследований: низкодифференцированная аденокарцинома культи желудка с перстневидноклеточным компонентом с прорастанием в пищевод и тонкую кишку, с распространением за пределы мышечного слоя.</p></sec><sec><title>   Заключение</title><p>   Заключение: Настоящий клинический случай подчеркивает сложность онкологической верификации у пациентов после перенесенных бариатрических операций. Длительная дисфагия, анастомозит и рецидивирующая ГЭРБ у таких пациентов определяют необходимость более детального обследования, включая последние достижения молекулярно-генетического анализа.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>   Introduction</title><p>   Introduction: Gastric cancer is one of the most common oncological diseases in the world, occupying the 5th place of morbidity and the 3rd place in the structure of mortality from oncological diseases. For a long time, issues affecting the risk of developing cancer after bariatric surgery remain relevant. Our observation is devoted to the diagnosis and treatment of a patient with gastric cancer after gastric bypass.</p><p>   Description of the clinical case: A 62‑year‑old patient was operated on 13. 07. 2016 – laparoscopic Roux gastric bypass for morbid obesity, 11.  09.  2019 – laparoscopic installation of the Cardioplant plate on a small stomach due to recurrent weight gain. Since 2020 the patient had the phenomena of anastomositis, dysphagia and gastroesophageal reflux. Courses of conservative therapy, sessions of balloon dilation of gastroenteroanastomosis and anastomosis resection failed to show a significant effect. The patient underwent comprehensive examinations at each treatment, including abdominal MSCT, cancer markers and studies of biopsy material of the gastric mucosa and gastroenteroanastomosis. As a result of histological studies, no signs of cancer were found. After applying to the Avicenna Medical Center in 2022 a molecular genetic analysis was carried out, in which the mRNA panel most corresponded to a malignant neoplasm. 20. 12. 2022 extirpation of the stomach stump with resection of the esophagus was performed. The cancer diagnosis was confirmed by histological and immunohistochemical studies: low‑grade adenocarcinoma of the stomach with a cricoid component with germination into the esophagus and small intestine, with spread beyond the muscle layer.</p></sec><sec><title>   Conclusion</title><p>   Conclusion: This clinical case highlights the complexity of oncological verification in patients after bariatric surgery. Prolonged dysphagia, anastomositis and recurrent GERD in such patients determine the need for a more detailed examination, including the latest achievements of molecular genetic analysis.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>гастрошунтирование</kwd><kwd>рак в оставшейся части желудка</kwd><kwd>ГЭРБ</kwd><kwd>бариатрия</kwd><kwd>анастомозит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gastric bypass</kwd><kwd>gastric cancer</kwd><kwd>GERD</kwd><kwd>bariatric surgery</kwd><kwd>anastomositis</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена без спонсорской поддержки</funding-statement><funding-statement xml:lang="en">The article was prepared without sponsorship</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">Sung H., Ferlay J., Siegel R.L., et al. 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