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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2226-5988</journal-id>
      <journal-id journal-id-type="eissn">2686-6749</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Клиническая и экспериментальная морфология</journal-title>
        <journal-title xml:lang="en">Clinical and Experimental Morphology</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name>ООО "Группа МДВ"</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31088/CEM2026.15.1.13-22</article-id>
      <title-group>
        <article-title xml:lang="ru">Внутрипеченочная холангиокарцинома</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>Intrahepatic cholangiocarcinoma</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Багрецова</surname>
            <given-names>Мария Андреевна</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Багрецова</surname>
              <given-names>Мария Андреевна</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Bagretsova</surname>
              <given-names>Maria A.</given-names>
            </name>
          </name-alternatives>
          <email>bagretsova.pathology@gmail.com</email>
          <contrib-id contrib-id-type="orcid">0009-0005-2884-9713</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Паклина</surname>
            <given-names>Оксана Владимировна</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Паклина</surname>
              <given-names>Оксана Владимировна</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Paklina</surname>
              <given-names>Oxana V.</given-names>
            </name>
          </name-alternatives>
          <contrib-id contrib-id-type="orcid">0000-0001-6373-1888</contrib-id>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Карнаухов</surname>
            <given-names>Николай Сергеевич</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Карнаухов</surname>
              <given-names>Николай Сергеевич</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Karnaukhov</surname>
              <given-names>Nikolay S.</given-names>
            </name>
          </name-alternatives>
          <contrib-id contrib-id-type="orcid">0000-0003-0889-2720</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Абрамов</surname>
            <given-names>Иван Сергеевич</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Абрамов</surname>
              <given-names>Иван Сергеевич</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Abramov</surname>
              <given-names>Ivan S.</given-names>
            </name>
          </name-alternatives>
          <contrib-id contrib-id-type="orcid">0000-0002-6954-1564</contrib-id>
          <xref ref-type="aff" rid="aff3"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">ГБУЗ Московский клинический научно-практический центр имени А.С. Логинова Департамента здравоохранения города Москвы, Москва, Россия</institution>
          </aff>
          <aff>
            <institution xml:lang="en">The Loginov Moscow Clinical Scientific Center, Moscow, Russia</institution>
          </aff>
        </aff-alternatives>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">ГБУЗ Московский клинический научно-практический центр имени А.С. Логинова Департамента здравоохранения города Москвы, Москва, Россия; ФГБУ Национальный медицинский исследовательский центр хирургии имени А.В. Вишневского Минздрава России, Москва, Россия</institution>
          </aff>
          <aff>
            <institution xml:lang="en">The Loginov Moscow Clinical Scientific Center, Moscow, Russia; A.V. Vishnevsky National Medical Research Center of Surgery, Moscow, Russia</institution>
          </aff>
        </aff-alternatives>
        <aff-alternatives id="aff3">
          <aff>
            <institution xml:lang="ru">ГБУЗ Московский клинический научно-практический центр имени А.С. Логинова Департамента здравоохранения города Москвы, Москва, Россия; Центр «Генетическое репрограммирование и генная терапия» ГБУЗ Московского клинического научно-практического центра имени А.С. Логинова Департамента здравоохранения города Москвы, Москва, Россия</institution>
          </aff>
          <aff>
            <institution xml:lang="en">The Loginov Moscow Clinical Scientific Center, Moscow, Russia; Genetic Reprogramming and Gene Therapy Center, The Loginov Moscow Clinical Scientific Center, Moscow, Russia</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2026-02-27">
        <day>27</day>
        <month>02</month>
        <year>2026</year>
      </pub-date>
      <volume>15</volume>
      <issue>1</issue>
      <fpage>13</fpage>
      <lpage>22</lpage>
      <history>
        <date date-type="received" iso-8601-date="2025-10-30">
          <day>30</day>
          <month>10</month>
          <year>2025</year>
        </date>
        <date date-type="accepted" iso-8601-date="2025-12-10">
          <day>10</day>
          <month>12</month>
          <year>2025</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2025-11-25">
          <day>25</day>
          <month>11</month>
          <year>2025</year>
        </date>
      </history>
      <abstract xml:lang="ru">
        <p>Внутрипеченочная холангиокарцинома является второй по распространенности первичной карциномой печени после гапатоцелюллярного рака. В последнее время отмечается тенденция к увеличению частоты данной патологии. На основе клинико-морфологических особенностей, мутационного профиля и прогноза внутрипеченочные холангиокарциномы делят на два подтипа: новообразования из мелких протоков и новообразования из крупных протоков. Течение заболевания и прогноз у двух подтипов резко отличаются друг от друга. Для мелкопротоковой внутрипеченочной холангиокарциномы свойственны мутации IDH1/2 и FGFR2-fusion, в то время как для внутрипеченочной холангиокарциномы из крупных протоков более характерны мутации KRAS и TP53. Целью обзора является анализ современных данных о гистопатологической классификации внутрипеченочной холангиокарциномы, её молекулярных особенностях, характеристиках опухолевого микроокружения и достижениях в области геномных исследований.</p>
      </abstract>
      <trans-abstract xml:lang="en">
        <p>Intrahepatic cholangiocarcinoma is the most common primary liver cancer after hepatocellular carcinoma. The incidence of intrahepatic cholangiocarcinoma has been increasing lately. Based on clinical and morphological features, mutational profile, and prognosis, intrahepatic cholangiocarcinomas are divided into two subtypes (small duct type and large duct type), whose course and prognosis differ significantly. The former is characterized by IDH1/2 mutations and FGFR2 fusions, while the latter is marked by KRAS and TP53 mutations. This review aimed to analyze current data on the histopathological classification of intrahepatic cholangiocarcinoma and its molecular features, characteristics of tumor microenvironment, and study advances in genomic research.</p>
      </trans-abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>внутрипеченочная холангиокарцинома</kwd>
        <kwd>молекулярно-генетические исследования</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>intrahepatic cholangiocarcinoma</kwd>
        <kwd>molecular genetic studies</kwd>
      </kwd-group>
      <funding-group>
        <funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования Российской Федерации (Федеральная научно-техническая программа развития генетических технологий на 2019–2030 годы, соглашение № 075-15-2025-523).</funding-statement>
        <funding-statement xml:lang="en">The work was supported by the Ministry of Science and Higher Education of the Russian Federation (the Federal Scientific and Technical Programme for the Development of Genetic Technologies for 2019–2030, agreement No. 075-15-2025-523).</funding-statement>
      </funding-group>
    </article-meta>
  </front>
  <body/>
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