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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">gastro-j</journal-id><journal-title-group><journal-title xml:lang="ru">Российский журнал гастроэнтерологии, гепатологии, колопроктологии</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Gastroenterology, Hepatology, Coloproctology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1382-4376</issn><issn pub-type="epub">2658-6673</issn><publisher><publisher-name>«Gastro» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22416/1382-4376-2023-33-3-16-33</article-id><article-id custom-type="elpub" pub-id-type="custom">gastro-j-896</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Клинико-морфологические особенности дисплазии и раннего рака желудка, возникшего на фоне аутоиммунного гастрита</article-title><trans-title-group xml:lang="en"><trans-title>Clinical and Morphological Features of Dysplasia and Early Gastric Cancer in the Patients with Autoimmune Gastritis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5635-6100</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тертычный</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tertychnyy</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тертычный Александр Семенович — доктор медицинских наук, профессор, заведующий лабораторией электронной микроскопии и иммуногистохимии Института клинической морфологии и цифровой патологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Alexander S. Tertychnyy — Dr.  Sci.  (Med.), Professor, Head of the Laboratory of Electron Microscopy and Immunohistochemistry, Institute of Clinical Morphology and Digital Pathology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">atertychnyy@yandex.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/0000-0002-8136-0117</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пачуашвили</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pachuashvili</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пачуашвили Нано Владимеровна — ординатор Института клинической морфологии и цифровой патологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Nano V. Pachuashvili — Intern at the Institute of Clinical Morphology and Digital Pathology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">npachuashvili@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/0000-0002-5907-6195</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нагорная</surname><given-names>Д. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Nagornaya</surname><given-names>D. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нагорная Дарина Павловна — аспирант Института клинической морфологии и цифровой патологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Darina P. Nagornaya — Postgraduate at the Institute of Clinical Morphology and Digital Pathology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">ndp.msk@ya.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/0000-0003-4456-8725</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лапина</surname><given-names>Т. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Lapina</surname><given-names>T. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лапина Татьяна Львовна — кандидат медицинских наук, доцент кафедры пропедевтики внутренних болезней, гастроэнтерологии и гепатологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Tatiana L. Lapina — Cand. Sci. (Med.), Assoc. Prof. at the Department of Propaedeutics of Internal Diseases, Gastroenterology and Hepatology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">tatlapina@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/0000-0002-3528-7983</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лосик</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Losik</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лосик Екатерина Александровна — кандидат медицинских наук, врач-кардиолог Клиники пропедевтики внутренних болезней, гастроэнтерологии и гепатологии им. В.Х. Василенко </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Ekaterina A. Losik — Cand. Sci. (Med.), Cardiologist, Clinic of Propaedeutics of Internal Diseases, Gastroenterology and Hepatology named after V.Kh. Vasilenko</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">kollezion@yandex.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/0000-0002-6771-5460</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пономарев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Ponomarev</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пономарев Андрей Борисович — кандидат медицинских наук, доцент Института клинической морфологии и цифровой патологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Andrey B. Ponomarev — Cand. Sci. (Med.), Associate Professor at the Institute of Clinical Morphology and Digital Pathology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">ponomarev_a_b@staff.sechenov.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/0000-0002-4391-5441</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлов</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlov</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павлов Павел Владимирович — кандидат медицинских наук, заведующий отделением диагностической и лечебной эндоскопии Университетской клинической больницы № 2 </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Pavel V. Pavlov — Cand. Sci. (Med.), Head of the Department of Diagnostic and Therapeutic Endoscopy, University Clinical Hospital No. 2</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">pvpavlov@yandex.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/0000-0001-5685-8784</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кирюхин</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kiryukhin</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кирюхин Андрей Павлович — кандидат медицинских наук, врач-эндоскопист отделения диагностической и лечебной эндоскопии Университетской клинической больницы № 2 </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Andrey P. Kiryukhin — Cand. Sci. (Med.), Endoscopist, Department of Diagnostic and Therapeutic Endoscopy, University Clinical Hospital No. 2</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">andresteam@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/0000-0002-1792-5638</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федоренко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorenko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федоренко Александр Алексеевич — врач-эндоскопист отделения диагностической и лечебной эндоскопии Университетской клинической больницы № 2 </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Aleksandr A. Fedorenko — Endoscopist, Department of Diagnostic and Therapeutic Endoscopy, University Clinical Hospital No. 2</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">shyra10@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/0000-0002-5851-2768</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Проценко</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Protsenko</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проценко Дмитрий Дмитриевич — кандидат медицинских наук, доцент, заместитель директора по образовательным программам, Институт клинической морфологии и цифровой патологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Dmitry D. Protsenko — Cand. Sci. (Med.), Docent, Deputy Director for Educational Programs, Institute of Clinical Morphology and Digital Pathology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">protsenko_d_d@staff.sechenov.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/0000-0002-6815-6015</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ивашкин</surname><given-names>В. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivashkin</surname><given-names>V. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ивашкин Владимир Трофимович — доктор медицинских наук, академик РАН, профессор, заведующий кафедрой пропедевтики внутренних болезней,   гастроэнтерологии и гепатологии </p><p>119435, г. Москва, Абрикосовский пер., 1, стр. 1</p></bio><bio xml:lang="en"><p>Vladimir T. Ivashkin — Dr. Sci. (Med.), RAS Academician, Professor, Head of the Department of Propaedeutics of Internal Diseases, Gastroenterology and Hepatology</p><p>119435, Moscow, Abrikosovskiy lane, 1, build. 1</p></bio><email xlink:type="simple">ivashkin_v_t@staff.sechenov.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова» Министерства здравоохранения Российской Федерации (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.M. Sechenov First Moscow State Medical University (Sechenov University)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>09</month><year>2023</year></pub-date><volume>33</volume><issue>3</issue><fpage>16</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тертычный А.С., Пачуашвили Н.В., Нагорная Д.П., Лапина Т.Л., Лосик Е.А., Пономарев А.Б., Павлов П.В., Кирюхин А.П., Федоренко А.А., Проценко Д.Д., Ивашкин В.Т., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Тертычный А.С., Пачуашвили Н.В., Нагорная Д.П., Лапина Т.Л., Лосик Е.А., Пономарев А.Б., Павлов П.В., Кирюхин А.П., Федоренко А.А., Проценко Д.Д., Ивашкин В.Т.</copyright-holder><copyright-holder xml:lang="en">Tertychnyy A.S., Pachuashvili N.V., Nagornaya D.P., Lapina T.L., Losik E.A., Ponomarev A.B., Pavlov P.V., Kiryukhin A.P., Fedorenko A.A., Protsenko D.D., Ivashkin V.T.</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.gastro-j.ru/jour/article/view/896">https://www.gastro-j.ru/jour/article/view/896</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: проанализировать серию случаев дисплазии и раннего рака желудка, развившихся на фоне аутоиммунного гастрита (АИГ), и выявить их клинико-морфологические особенности.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование было включено шесть случаев обнаружения раннего рака желудка на фоне АИГ. Четверо из шести пациентов прошли эндоскопическое лечение в 2022 г., в трех из шести случаев пациентам была выполнена эндоскопическая мукозэктомия с диссекцией в подслизистом слое. Одному пациенту эндоскопическая операция была проведена в 2017 г., он продолжает ежегодное динамическое наблюдение по настоящее время без признаков рецидива опухоли. Пациентка с сочетанием слабой дисплазии и нейроэндокринной опухолью 1-го типа ожидает лечения.</p></sec><sec><title>Результаты</title><p>Результаты. У пяти из шести пациентов с АИГ опухоли были локализованы в теле желудка, при этом все выявленные случаи рака были ранними, а по иммунофенотипу — желудочными. Представленные случаи раннего рака не сопровождались гиперплазией нейроэндокринных клеток непосредственно в зоне самой опухоли, а только в окружающей слизистой оболочке желудка. В двух случаях дополнительно были обнаружены ранние гастроинтестинальные стромальные опухоли, которые характеризовались низкой пролиферативной активностью и имели небольшие размеры.</p></sec><sec><title>Выводы</title><p>Выводы. Преобладание псевдопилорической метаплазии  в  окружающей  опухоль  слизистой  оболочке позволяет рассматривать псевдопилорическую метаплазию как потенциально значимое изменение в слизистой оболочке желудка пациентов с АИГ, которая может предшествовать развитию рака желудка. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Аim</title><p>Аim: to analyze a series of cases of dysplasia and early gastric cancer developed in patients with autoimmune gastritis (AIG), and to identify their clinical and morphological features.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study included six cases of detection of early gastric cancer on the background of AIG. Four out of six patients underwent endoscopic treatment, and in three out of six cases patients underwent endoscopic mucosectomy with dissection in the submucosal layer. One patient underwent endoscopic surgery in 2017, he continues annual dynamic follow-up without signs of tumour recurrence. A female patient with type 1 neuroendocrine tumour and mild dysplasia is awaiting treatment.</p></sec><sec><title>Results</title><p>Results. In five out of six patients with AIG, the localization of lesions prevailed in the stomach body, while all detected tumours were early ones, and according to the immunophenotype — of a gastric type. The presented cases of tumours were not accompanied by hyperplasia of neuroendocrine cells directly in the area of the tumour itself, but only in the surrounding gastric mucosa. Additionally, several cases of early gastrointestinal stromal tumours were found, which were characterized by low proliferative activity and had small sizes.</p></sec><sec><title>Conclusion</title><p>Conclusion. The predominance of pseudopyloric metaplasia in the surrounding mucosa allows us to consider pseudopyloric metaplasia as a potentially significant change in the gastric mucosa of patients with AIG that may precede the development of gastric cancer.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>аутоиммунный гастрит</kwd><kwd>ранний рак желудка</kwd><kwd>дисплазия</kwd><kwd>аденокарцинома желудка</kwd><kwd>псевдопилорическая метаплазия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>autoimmune gastritis</kwd><kwd>early stomach cancer</kwd><kwd>dysplasia</kwd><kwd>gastric adenocarcinoma</kwd><kwd>pseudopyloric metaplasia</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">Sung H., Ferlay J., Siegel R.L., Laversanne M., Soerjo-mataram I., Jemal A., et al. 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