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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">847</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2021-17-2-75-80</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">Utility of <sup>18</sup>F-fluoroestradiol PET / CT in the differential diagnosis of estrogen receptor-positive breast cancer: case series</article-title><trans-title-group xml:lang="ru"><trans-title>Возможности ПЭТ / КТ с <sup>18</sup>F-фторэстрадиолом в дифференциальной диагностике эстроген-рецептор-положительного рака молочной железы: описание клинических случаев</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2963-4176</contrib-id><name-alternatives><name xml:lang="en"><surname>Parnas</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Парнас</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 1, 2 / 1 Barrikadnaya St., Moscow 125993, Russia</p></bio><bio xml:lang="ru"><p>Россия, 125993 Москва, ул. Баррикадная, 2 / 1, стр. 1</p></bio><email>alexandrparnas@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1632-351X</contrib-id><name-alternatives><name xml:lang="en"><surname>Pronin</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Пронин</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478, Russia</p></bio><bio xml:lang="ru"><p>Россия, 115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5375-2498</contrib-id><name-alternatives><name xml:lang="en"><surname>Ilyakov</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Ильяков</surname><given-names>В. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 1, 2 / 1 Barrikadnaya St., Moscow 125993, Russia</p></bio><bio xml:lang="ru"><p>Россия, 125993 Москва, ул. Баррикадная, 2 / 1, стр. 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0770-3406</contrib-id><name-alternatives><name xml:lang="en"><surname>Meshcheryakova</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Мещерякова</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478, Russia</p></bio><bio xml:lang="ru"><p>Россия, 115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4376-3978</contrib-id><name-alternatives><name xml:lang="en"><surname>Kamolova</surname><given-names>Z. Kh.</given-names></name><name xml:lang="ru"><surname>Камолова</surname><given-names>З. Х.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478, Russia</p></bio><bio xml:lang="ru"><p>Россия, 115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2969-0191</contrib-id><name-alternatives><name xml:lang="en"><surname>Nevzorov</surname><given-names>D. I.</given-names></name><name xml:lang="ru"><surname>Невзоров</surname><given-names>Д. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115478, Russia</p></bio><bio xml:lang="ru"><p>Россия, 115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Russian Medical Academy of Postgraduate Education, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">N.N. Blokhin Russian Cancer Research Center, 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><pub-date date-type="pub" iso-8601-date="2021-09-20" publication-format="electronic"><day>20</day><month>09</month><year>2021</year></pub-date><volume>17</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><history><date date-type="received" iso-8601-date="2021-09-18"><day>18</day><month>09</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-09-18"><day>18</day><month>09</month><year>2021</year></date></history><permissions><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/847">https://ojrs.abvpress.ru/ojrs/article/view/847</self-uri><abstract xml:lang="en"><p>Breast cancer is one of the most common female cancers and the leading cause of cancer death in women. The method of positron emission tomography, combined with computed tomography, makes it possible to assess not only anatomical and structural, but also metabolic changes in tumor tissue. The increased accumulation of 18F-fluoroestradiol in the pathological focus correlates with the estrogen receptor-positive status of the tumor, which is confirmed by tissue immunohistochemistry studies. The receptor status of a tumor formation fundamentally affects the choice of therapeutic tactics. The presented clinical examples demonstrate the capabilities of positron emission tomography, combined with computed tomography, with 18F-fluoroestradiol in the diagnosis of the estrogen receptor-positive tumor lesions.</p></abstract><trans-abstract xml:lang="ru"><p>Рак молочной железы – одно из наиболее распространенных женских онкологических заболеваний и ведущая причина смерти от рака у женщин. Метод позитронно-эмиссионной томографии, совмещенной с компьютерной томографией, позволяет оценить не только анатомические и структурные, но и метаболические изменения в опухолевой ткани. Повышенное накопление 18F-фторэстрадиола в патологическом очаге коррелирует с эстроген-рецептор-положительным статусом опухоли, что подтверждается иммуногистохимическими исследованиями ткани. Рецепторный статус опухолевого образования принципиально влияет на выбор терапевтической тактики. Представленные клинические примеры демонстрируют возможности совмещенной с компьютерной томографией позитронно-эмиссионной томографии с 18F-фторэстрадиолом в диагностике эстроген-рецептор-положительного опухолевого поражения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>PET / CT</kwd><kwd>18F-FES</kwd><kwd>estrogen receptors</kwd><kwd>breast cancer</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ПЭТ / КТ</kwd><kwd>18F-ФЭС</kwd><kwd>рецепторы эстрогена</kwd><kwd>рак молочной железы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Malignant tumors in Russia in 2017 (incidence and mortality). Ed. by A.D. Kaprin, V.V. Starinskiy, G.V. Petrova. Moscow: P.A. Herzen Moscow Oncology Research Institute – a branch of the National Medical Research Radiological Center, Ministry of Health of Russia, 2018. 250 p. 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