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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">10.22416/1382-4376-2026-36-3-118-124</article-id><article-id custom-type="elpub" pub-id-type="custom">gastro-j-1917</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>Муцинозная опухоль червеобразного отростка низкой степени злокачественности:  описание двух клинических случаев и обзор литературы</article-title><trans-title-group xml:lang="en"><trans-title>Low-Grade Appendiceal Mucinous Neoplasms:  Description of Two Cases and Literature Review</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4092-7738</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Байрамов</surname><given-names>Р. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Bayramov</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Байрамов Рамиз Бахтияр оглы* — доктор медицинских наук, профессор кафедры онкологии, руководитель отделения торакоабдоминальной хирургической онкологии Онкологической Клиники</p><p>AZ 1022, г. Баку, ул. Бакиханова, 23</p></bio><bio xml:lang="en"><p>Ramiz Bayramov* — Dr. Sci. (Med.), Professor at the Department of Oncology, Head of the Thoracoabdominal Surgical Oncology Unit of Oncologic Clinic</p><p>AZ 1022, Baku, Bakikhanov str., 23</p></bio><email xlink:type="simple">ramizbayramov@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/0009-0001-3928-0455</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мурадов</surname><given-names>Г. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Muradov</surname><given-names>H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мурадов Габил Камил оглы — доктор медицинских наук, профессор кафедры цитологии, эмбриологии и гистологии</p><p>AZ 1022, г. Баку, ул. Бакиханова, 23</p></bio><bio xml:lang="en"><p>Habil Muradov — Dr. Sci. (Med.), Professor at the Department of Histology, Cytology and Embryology</p><p>AZ 1022, Baku, Bakikhanov str., 23</p></bio><email xlink:type="simple">habilmuradov@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/0000-0002-8379-0911</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гусейнова</surname><given-names>С. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Huseynova</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гусейнова Симара Эльдар кзы — кандидат медицинских наук, врач-лаборант кафедры онкологии</p><p>AZ 1022, г. Баку, ул. Бакиханова, 23</p></bio><bio xml:lang="en"><p>Simara Huseynova – PhD (Medicine), Assistant Doctor at the Department of Oncology</p><p>AZ 1022, Baku, Bakikhanov str., 23</p></bio><email xlink:type="simple">Hsimare@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/0009-0002-5036-0023</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Магеррамов</surname><given-names>З. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Maharramov</surname><given-names>Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Магеррамов Заур Аяз оглы — врач-резидент кафедры онкологии</p><p>AZ 1022, г. Баку, ул. Бакиханова, 23</p></bio><bio xml:lang="en"><p>Zaur Maharramov — Resident Doctor at the Department of Oncology</p><p>AZ 1022, Baku, Bakikhanov str., 23</p></bio><email xlink:type="simple">zaur.maq2001@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Байрамлы</surname><given-names>Ф. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Bayramli</surname><given-names>F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Байрамлы Фарид Рамиз оглы — врач-резидент кафедры лучевой диагностики и терапии</p><p>AZ 1022, г. Баку, ул. Бакиханова, 23</p></bio><bio xml:lang="en"><p>Farid Bayramli — Resident Doctor at the Department of Radiology</p><p>AZ 1022, Baku, Bakikhanov str., 23</p></bio><email xlink:type="simple">2002faridbayramli@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибрагимова</surname><given-names>Ф. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibrahimova</surname><given-names>F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ибрагимова Фидан Габил кзы — ассистент кафедры цитологии, эмбриологии и гистологии</p><p>AZ 1022, г. Баку, ул. Бакиханова, 23</p></bio><bio xml:lang="en"><p>Fidan Ibrahimova — Assistant Professor at the Department of Histology, Cytology and Embryology</p><p>AZ 1022, Baku, Bakikhanov str., 23</p></bio><email xlink:type="simple">fhibrahimova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Азербайджанский Медицинский Университет</institution><country>Азербайджан</country></aff><aff xml:lang="en"><institution>Azerbaijan Medical University</institution><country>Azerbaijan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2026</year></pub-date><volume>36</volume><issue>3</issue><fpage>118</fpage><lpage>124</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Байрамов Р.Б., Мурадов Г.К., Гусейнова С.Э., Магеррамов З.А., Байрамлы Ф.Р., Ибрагимова Ф.Г., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Байрамов Р.Б., Мурадов Г.К., Гусейнова С.Э., Магеррамов З.А., Байрамлы Ф.Р., Ибрагимова Ф.Г.</copyright-holder><copyright-holder xml:lang="en">Bayramov R., Muradov H., Huseynova S., Maharramov Z., Bayramli F., Ibrahimova F.</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/1917">https://www.gastro-j.ru/jour/article/view/1917</self-uri><abstract><sec><title>Цель</title><p>Цель: представить два клинических случая муцинозных новообразований аппендикса низкой степени злокачественности (low-grade appendiceal mucinous neoplasms, LAMN) и оценить онкологическую адекватность илеоцекэктомии с илеоасцендоанастомозом у пациентов с вовлечением слепой кишки.</p></sec><sec><title>Основные положения</title><p>Основные положения. Муцинозные новообразования аппендикса — это редкие опухоли, которые выявляются либо в ходе радиологических исследований, проводимых по другим показаниям, либо интраоперационно у пациентов, оперируемых с диагнозом «аппендицит», либо при патогистологическом исследовании операционного материала после аппендэктомии. В 2025 г. в онкологической клинике Азербайджанского медицинского университета были прооперированы два пациента мужского пола в возрасте 36 и 70 лет с вышеуказанным диагнозом. Новообразование у 36-летнего пациента было обнаружено во время интраоперационной ревизии по поводу подозрения на аппендицит в районной больнице. У другого пациента опухоль была выявлена на предоперационном этапе при компьютерной томографии, выполненной с целью стадирования эндоскопически и гистологически верифицированной аденокарциномы сигмовидной кишки. Обоим пациентам по поводу данных муцинозных новообразований аппендикса была выполнена илеоцекэктомия с формированием илеоасцендоанастомоза. Послеоперационный период протекал без осложнений, а патогистологическое исследование резецированных макропрепаратов подтвердило диагноз LAMN в обоих случаях.</p></sec><sec><title>Заключение</title><p>Заключение. У пациентов с LAMN, прилежащей к слепой кишке или инфильтрирующей ее, выполнение илеоцекэктомии и илеоасцендоанастомоза может рассматриваться как адекватное хирургическое вмешательство. Хотя данный объем операции менее обширен, чем правосторонняя гемиколэктомия, теоретически он сопоставим с ней с точки зрения степени радикальности онкологического лечения.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: to present two clinical cases of low-grade appendiceal mucinous neoplasms (LAMN) and evaluate the oncological adequacy of ileocecectomy with ileoascending anastomosis in patients with cecal involvement.</p></sec><sec><title>Key points</title><p>Key points. Appendiceal mucinous neoplasms are rare tumors detected either during radiological examinations conducted for other reasons, intraoperatively in patients operated on with a diagnosis of appendicitis, or during histopathological examination of the appendectomy specimen. In 2025, two male patients, aged 36 and 70 years, with the aforementioned diagnosis were operated on at the Oncology Clinic of Azerbaijan Medical University. The neoplasm in the 36-year-old patient was discovered during intraoperative revision for suspected appendicitis at a district hospital. In the other patient, the tumor was detected preoperatively during a CT scan performed to stage an endoscopically and histopathologically confirmed sigmoid colon carcinoma. Both patients underwent an ileocecectomy with an ileoascending anastomosis for the appendiceal mucinous neoplasms. The postoperative period was uneventful, and histopathological examination of the resected specimens confirmed a low-grade appendiceal mucinous neoplasm (LAMN) in both cases.</p></sec><sec><title>Conclusion</title><p>Conclusion. In patients with LAMN adherent to or infiltrating the cecum, an ileocecectomy with ileoascending anastomosis can be performed as an adequate surgical procedure. Although this volume of surgery is less extensive than a right hemicolectomy, it can theoretically be compared with it in terms of providing oncological radicality.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>муцинозные опухоли червеобразного отростка</kwd><kwd>муцинозная опухоль низкой степени злокачественности</kwd><kwd>муцинозная опухоль высокой степени злокачественности</kwd><kwd>мукоцеле</kwd><kwd>илеоцекэктомия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>appendiceal mucinous neoplasms</kwd><kwd>low-grade appendiceal mucinous neoplasm</kwd><kwd>high-grade appendiceal mucinous neoplasm</kwd><kwd>mucocele</kwd><kwd>ileocecectomy</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">González Bayón L., Martín Román L., Lominchar P. Appendiceal mucinous neoplasms: From clinic to pathology and prognosis. Cancers (Basel). 2023;15(13):3426. 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