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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">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">1321</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2024-20-4-88-94</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>MAMMOLOGY. CLINICAL CASE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МАММОЛОГИЯ. 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">Epidermal cyst of the mammary gland: a common benign formation of atypical localization</article-title><trans-title-group xml:lang="ru"><trans-title>Эпидермальная киста молочной железы: распространенное доброкачественное новообразование нетипичной локализации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6014-4597</contrib-id><name-alternatives><name xml:lang="en"><surname>Khodorovich</surname><given-names>O. S.</given-names></name><name xml:lang="ru"><surname>Ходорович</surname><given-names>О. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>86 Profsoyuznaya St., Moscow 117997, Russia </p><p>6 Miklukho-Maklaya St., Moscow 117198, Russia</p></bio><bio xml:lang="ru"><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p><p>Россия, 117198 Москва, ул. Миклухо-Маклая, 6 </p></bio><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/0000-0002-1641-6452</contrib-id><name-alternatives><name xml:lang="en"><surname>Solodkiy</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Солодкий</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p> 86 Profsoyuznaya St., Moscow 117997, Russia </p></bio><bio xml:lang="ru"><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8265-1848</contrib-id><name-alternatives><name xml:lang="en"><surname>Kalinina-Masri</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Калинина-Масри</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Alyona Anatolyevna Kalinina-Masri </p><p>86 Profsoyuznaya St., Moscow 117997, Russia </p></bio><bio xml:lang="ru"><p> Алена Анатольевна Калинина-Масри</p><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p></bio><email>kalinina-masri@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3261-0984</contrib-id><name-alternatives><name xml:lang="en"><surname>Sherstneva</surname><given-names>T. V.</given-names></name><name xml:lang="ru"><surname>Шерстнева</surname><given-names>Т. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p> 86 Profsoyuznaya St., Moscow 117997, Russia </p></bio><bio xml:lang="ru"><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0802-2437</contrib-id><name-alternatives><name xml:lang="en"><surname>Kleshneva</surname><given-names>V. O.</given-names></name><name xml:lang="ru"><surname>Клешнева</surname><given-names>В. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p> 86 Profsoyuznaya St., Moscow 117997, Russia </p></bio><bio xml:lang="ru"><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7667-3306</contrib-id><name-alternatives><name xml:lang="en"><surname>Ishchenko</surname><given-names>K. B.</given-names></name><name xml:lang="ru"><surname>Ищенко</surname><given-names>К. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p> 86 Profsoyuznaya St., Moscow 117997, Russia </p></bio><bio xml:lang="ru"><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-4683-5349</contrib-id><name-alternatives><name xml:lang="en"><surname>Muravyova</surname><given-names>P. V.</given-names></name><name xml:lang="ru"><surname>Муравьева</surname><given-names>П. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p> 86 Profsoyuznaya St., Moscow 117997, Russia </p></bio><bio xml:lang="ru"><p> Россия, 117997 Москва, ул. Профсоюзная, 86 </p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7515-3034</contrib-id><name-alternatives><name xml:lang="en"><surname>Khodorovich</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Ходорович</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>6 Miklukho-Maklaya St., Moscow 117198, Russia </p></bio><bio xml:lang="ru"><p>Россия, 117198 Москва, ул. Миклухо-Маклая, 6 </p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Russian Research Center of Radiology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Российский научный центр рентгенорадиологии» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский университет дружбы народов им. Патриса Лумумбы»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-03" publication-format="electronic"><day>03</day><month>12</month><year>2024</year></pub-date><volume>20</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>88</fpage><lpage>94</lpage><history><date date-type="received" iso-8601-date="2024-12-05"><day>05</day><month>12</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-year>2024</copyright-year><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/1321">https://ojrs.abvpress.ru/ojrs/article/view/1321</self-uri><abstract xml:lang="en"><p>Epidermal cysts can be located anywhere: on the scalp, face, trunk, neck and limbs. In the article, specialists from the Department of Surgical Treatment Methods and Antitumor Drug Therapy for Breast Tumors at the Mammology Clinic of the Russian Research Center of Radiology present a rare clinical case of a cyst of atypical localization and a literature review aimed at raising awareness of the existence of epidermal cysts in the parenchyma of the mammary gland. This clinical experience is also interesting from the point of view of differential diagnostics between other benign and malignant formations of the mammary gland to choose the right treatment tactics.</p></abstract><trans-abstract xml:lang="ru"><p>Эпидермальные кисты могут иметь любую локализацию: на коже головы, лице, туловище, шее и конечностях. В статье специалисты отделения хирургических методов лечения и противоопухолевой лекарственной терапии опухолей молочной железы маммологической клиники Российского научного центра рентгенорадиологии представляют редкий клинический случай кисты нетипичной локализации и обзор литературы, направленный на повышение уровня осведомленности о существовании эпидермальных кист в паренхиме молочной железы. Также данный клинический опыт интересен с точки зрения дифференциальной диагностики между другими доброкачественными и злокачественными новообразованиями молочной железы для выбора правильной тактики лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>epidermal cyst</kwd><kwd>mammary gland</kwd><kwd>surgery</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эпидермальная киста</kwd><kwd>молочная железа</kwd><kwd>хирургия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Zhao A., Kedarisetty S., Arriola A.G.P., Isaacson G. Pilomatrixoma and its Imitators. Ear Nose Throat J 2024;103(3):183–9. DOI: 10.1177/01455613211044778</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Hoang V.T., Trinh C.T., Nguyen C.H. et al. Overview of epidermoid cyst. Eur J Radiol Open 2019;6:291–301. 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