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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="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</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">1434</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2025-21-4-63-70</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>MAMMOLOGY. REVIEWS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МАММОЛОГИЯ. ОБЗОРНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Clinical and diagnostic features of lobular breast cancer</article-title><trans-title-group xml:lang="ru"><trans-title>Клинико-диагностические особенности долькового рака молочной железы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8814-636X</contrib-id><name-alternatives><name xml:lang="en"><surname>Vysotskaya</surname><given-names>Irina V.</given-names></name><name xml:lang="ru"><surname>Высоцкая</surname><given-names>Ирина Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Member of the RSOM Board, MD, PhD, Professor of the Department of Oncology</p></bio><bio xml:lang="ru"><p>член правления РООМ, д.м.н., профессор кафедры онкологии</p></bio><email>vysotnaya.irinavic63@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4893-8770</contrib-id><name-alternatives><name xml:lang="en"><surname>Kim</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Ким</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vysotnaya.irinavic63@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2572-2547</contrib-id><name-alternatives><name xml:lang="en"><surname>Denchik</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Денчик</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vysotnaya.irinavic63@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-9443-1244</contrib-id><name-alternatives><name xml:lang="en"><surname>Struts</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Струц</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vysotnaya.irinavic63@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2987-402X</contrib-id><name-alternatives><name xml:lang="en"><surname>Golovina</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Головина</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vysotnaya.irinavic63@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-5502-1524</contrib-id><name-alternatives><name xml:lang="en"><surname>Shevkunova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Шевкунова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vysotnaya.irinavic63@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО Первый Московский государственный медицинский университет им. И. М. Сеченова (Сеченовский Университет) Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н. Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Rostov State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Ростовский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-01-20" publication-format="electronic"><day>20</day><month>01</month><year>2026</year></pub-date><volume>21</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>63</fpage><lpage>70</lpage><history><date date-type="received" iso-8601-date="2026-01-23"><day>23</day><month>01</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-01-23"><day>23</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Vysotskaya I.V., Kim E.A., Denchik D.A., Struts I.S., Golovina E.A., Shevkunova A.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Высоцкая И.В., Ким Е.А., Денчик Д.А., Струц И.С., Головина Е.А., Шевкунова А.В.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Vysotskaya I.V., Kim E.A., Denchik D.A., Struts I.S., Golovina E.A., Shevkunova A.V.</copyright-holder><copyright-holder xml:lang="ru">Высоцкая И.В., Ким Е.А., Денчик Д.А., Струц И.С., Головина Е.А., Шевкунова А.В.</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://ojrs.abvpress.ru/ojrs/article/view/1434">https://ojrs.abvpress.ru/ojrs/article/view/1434</self-uri><abstract xml:lang="en"><p>This review focuses on current information regarding the clinical and diagnostic characteristics of lobular breast cancer. It presents information on the molecular biological characteristics and biological behavioral characteristics of various subtypes of preinvasive and infiltrative cancers of this histological type. Optimal treatment options for preinvasive and early invasive lobular breast cancer are identified.</p></abstract><trans-abstract xml:lang="ru"><p>Обзор посвящен современным данным, касающимся клинических и диагностических особенностей долькового рака молочной железы. Представлены сведения о молекулярно-биологических характеристиках и своеобразии биологического поведения различных подтипов преинвазивного и инфильтративного рака данного гистологического типа. Определены оптимальные варианты лечебной тактики при преинвазивном и начальном инвазивном дольковом раке молочной железы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>lobular carcinoma in situ</kwd><kwd>genetic alteration</kwd><kwd>molecular subtype of lobular carcinoma</kwd><kwd>histological type</kwd><kwd>imaging diagnostics</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>преинвазивный дольковый рак</kwd><kwd>генетическое изменение</kwd><kwd>молекулярный подтип долькового рака</kwd><kwd>гистологический тип</kwd><kwd>лучевая диагностика</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Arnold M., Morgan E., Rumgay H. et al. Current and future burden of breast cancer: global statistics for 2020 and 2040. Breast 2022;66:15–23.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>McCart A.E., Kalinowski L., Simpson T. 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