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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">Head and Neck Tumors</journal-id><journal-title-group><journal-title xml:lang="en">Head and Neck Tumors</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли головы и шеи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-1468</issn><issn publication-format="electronic">2411-4634</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1078</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2025-15-2-109-115</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Nutritional support for an oncological patient receiving intensive drug antitumor treatment: a clinical case</article-title><trans-title-group xml:lang="ru"><trans-title>Нутритивная поддержка онкологического пациента, получающего интенсивное лекарственное противоопухолевое лечение: клинический случай</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-5735-8538</contrib-id><name-alternatives><name xml:lang="en"><surname>Tankieva</surname><given-names>F. U.-G.</given-names></name><name xml:lang="ru"><surname>Танкиева</surname><given-names>Ф. У.-Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><bold>Fatima Umat-Gireevna Tankieva</bold></p><p>66 Sevastopolskiy Prospekt, Moscow 117593</p></bio><bio xml:lang="ru"><p><bold>Фатима Умат-Гиреевна Танкиева</bold></p><p>117593 Москва, Севастопольский пр-кт, 66</p></bio><email>alievafatim@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4546-0011</contrib-id><name-alternatives><name xml:lang="en"><surname>Pak</surname><given-names>M. B.</given-names></name><name xml:lang="ru"><surname>Пак</surname><given-names>М. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>66 Sevastopolskiy Prospekt, Moscow 117593</p></bio><bio xml:lang="ru"><p>117593 Москва, Севастопольский пр-кт, 66</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8727-6111</contrib-id><name-alternatives><name xml:lang="en"><surname>Berelavichus</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Берелавичус</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>66 Sevastopolskiy Prospekt, Moscow 117593</p></bio><bio xml:lang="ru"><p>117593 Москва, Севастопольский пр-кт, 66</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4236-4799</contrib-id><name-alternatives><name xml:lang="en"><surname>Rayevskaya</surname><given-names>M. B.</given-names></name><name xml:lang="ru"><surname>Раевская</surname><given-names>М. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>66 Sevastopolskiy Prospekt, Moscow 117593</p></bio><bio xml:lang="ru"><p>117593 Москва, Севастопольский пр-кт, 66</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7349-1192</contrib-id><name-alternatives><name xml:lang="en"><surname>Stashkiv</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Сташкив</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>66 Sevastopolskiy Prospekt, Moscow 117593</p></bio><bio xml:lang="ru"><p>117593 Москва, Севастопольский пр-кт, 66</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-8434-8701</contrib-id><name-alternatives><name xml:lang="en"><surname>Kirsanova</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Кирсанова</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Bld. 1, Riga Land, 26 km of Baltiya Road, Krasnogorsk District, Moscow Region 143421</p></bio><bio xml:lang="ru"><p>143421 Московская обл., Красногорский р-н, автодорога Балтия, 26-й км, БЦ «Рига Лэнд», стр. 1</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Multidisciplinary Medical Center of the Bank of Russia</institution></aff><aff><institution xml:lang="ru">Многопрофильный медицинский центр Банка России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">LLC “Nutricia”</institution></aff><aff><institution xml:lang="ru">ООО «Нутриция»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-07-09" publication-format="electronic"><day>09</day><month>07</month><year>2025</year></pub-date><volume>15</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>109</fpage><lpage>115</lpage><history><date date-type="received" iso-8601-date="2025-07-09"><day>09</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-09"><day>09</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Tankieva F.U., Pak M.B., Berelavichus S.V., Rayevskaya M.B., Stashkiv V.I., Kirsanova E.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Танкиева Ф.У., Пак М.Б., Берелавичус С.В., Раевская М.Б., Сташкив В.И., Кирсанова Е.А.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Tankieva F.U., Pak M.B., Berelavichus S.V., Rayevskaya M.B., Stashkiv V.I., Kirsanova E.A.</copyright-holder><copyright-holder xml:lang="ru">Танкиева Ф.У., Пак М.Б., Берелавичус С.В., Раевская М.Б., Сташкив В.И., Кирсанова Е.А.</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://ogsh.abvpress.ru/jour/article/view/1078">https://ogsh.abvpress.ru/jour/article/view/1078</self-uri><abstract xml:lang="en"><p>Pancreatic cancer is one of the most aggressive types of oncological diseases and is often accompanied by various complications including malnutrition. Despite significant successes in the treatment of pancreatic cancer, late diagnosis, aggressive progression and resistance to traditional therapy methods complicate its treatment.The article presents the causes, consequences and ways to correct malnutrition in patients with this malignant neoplasm, as well as a clinical case demonstrating the importance of nutritional deficiency screening and timely nutritional support in patients with pancreatic cancer during antitumor treatment.</p></abstract><trans-abstract xml:lang="ru"><p>Рак поджелудочной железы является одним из наиболее агрессивных видов онкологических заболеваний и часто сопровождается различными осложнениями, в том числе мальнутрицией. Несмотря на значительные достижения в терапии рака поджелудочной железы, поздняя диагностика заболевания, агрессивный характер течения и устойчивость к традиционным методам терапии затрудняют его лечение.В статье представлены причины, последствия и возможности коррекции данной патологии у пациентов с этим злокачественным новообразованием, а также клинический случай, демонстрирующий важность скрининга нутритивной недостаточности и своевременной нутритивной поддержки больных раком поджелудочной железы во время противоопухолевого лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pancreatic cancer</kwd><kwd>nutritional deficiency</kwd><kwd>malnutrition</kwd><kwd>sipping</kwd><kwd>high-protein treatment mixture</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак поджелудочной железы</kwd><kwd>нутритивная недостаточность</kwd><kwd>мальнутриция</kwd><kwd>сипинг</kwd><kwd>высокобелковая лечебная смесь</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Jin D., Khan N.U., Gu W. et al. 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