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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="ru"><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">536</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2017-13-1-59-63</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>GYNECOLOGY. ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ГИНЕКОЛОГИЯ. ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Multiple primary synchronous tumor: сancer of the cecum and borderline ovarian tumor with congenital uterine malformation (clinical observation)</article-title><trans-title-group xml:lang="ru"><trans-title>Первично-множественная синхронная опух оль: рак слепой кишки и пограничная опухоль яичника с врожденным пороком развития матки (клиническое наблюдение)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gerasimov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Герасимов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dr.gerasimov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krasilnikov</surname><given-names>S. E.</given-names></name><name xml:lang="ru"><surname>Красильников</surname><given-names>С. Э.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kedrova</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Кедрова</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fursov</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Фурсов</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kolotova</surname><given-names>N. M.</given-names></name><name xml:lang="ru"><surname>Колотова</surname><given-names>Н. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Voitsitsky</surname><given-names>V. E.</given-names></name><name xml:lang="ru"><surname>Войцицкий</surname><given-names>В. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Novosibirsk State Regional Clinical Oncologic Dispensary</institution></aff><aff><institution xml:lang="ru">ГБУЗ Новосибирской области «Новосибирский областной клинический онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute for Advanced Training, Federal Medical and Biological Agency</institution></aff><aff><institution xml:lang="ru">ФГБОУ ДПО «Институт повышения квалификации ФМБА»</institution></aff></aff-alternatives><content-language>ru</content-language><pub-date date-type="pub" publication-format="electronic" iso-8601-date="2017-05-05"><day>05</day><month>05</month><year>2017</year></pub-date><pub-date date-type="collection"><year>2017</year></pub-date><volume>13</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>59</fpage><lpage>63</lpage><history><date date-type="received" iso-8601-date="2017-05-06"><day>06</day><month>05</month><year>2017</year></date><date date-type="accepted" iso-8601-date="2017-05-06"><day>06</day><month>05</month><year>2017</year></date></history><pub-history><event event-type="received"><event-desc>Received:<date date-type="received" iso-8601-date="2017-05-06"><day>06</day><month>05</month><year>2017</year></date></event-desc></event><event event-type="accepted"><event-desc>Accepted:<date date-type="accepted" iso-8601-date="2017-05-06"><day>06</day><month>05</month><year>2017</year></date></event-desc></event><event event-type="pub"><event-desc>Published:<pub-date date-type="pub" publication-format="electronic" iso-8601-date="2017-05-05"><day>05</day><month>05</month><year>2017</year></pub-date></event-desc></event></pub-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/536">https://ojrs.abvpress.ru/ojrs/article/view/536</self-uri><abstract xml:lang="en"><p>The article presents a clinical observation of a combination of multiple primary tumors: cancer of the cecum, mixed Müllerian atypical proliferative (borderline) tumors, atypical hyperplasia of the uterus endometrium with uterus didelphys. A rare combination of uterine malformation at the organogenesis stage suggests presence of ectopic Müllerian epithelium in different tissues, where, due to various reasons, notably endometriosis and metabolic disorders, cancerogenic mutations may quickly accumulate. Active metaplasia of ectopic epithelium serves as a favorable medium for microsatellite instability and several pathways of atypical proliferation. This increases the risk of development of multipleprimary tumors.</p></abstract><trans-abstract xml:lang="ru"><p>Представлено клиническое наблюдение сочетания первично-множественных опухолей: рака слепой кишки, пограничной опухоли яичника, атипической гиперплазии эндометрия в матке при полном ее удвоении. Редкое сочетание порока развития матки на стадии органогенеза предполагает наличие эктопированных очагов эпителия мюллеровского типа в различных тканях, в которых в результате различных причин, в частности эндометриоза или метаболических нарушений, могут быстро накапливаться мутации, ответственные за канцерогенез. Активная метаплазия эктопированного эпителия является хорошим фоном для развития микросателлитной нестабильности и запуска нескольких путей атипической пролиферации. Все эти процессы увеличиваютриски развития первично-множественных опухолей.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cancer of the cecum</kwd><kwd>borderline ovarian tumor</kwd><kwd>surgical treatment</kwd><kwd>uterus didelphys</kwd><kwd>mixed Müllerian atypical proliferative (borderline) tumors</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак слепой кишки</kwd><kwd>пограничная опухоль яичника</kwd><kwd>хирургическое лечение</kwd><kwd>полное удвоение матки</kwd><kwd>серозно-муцинозные опухоли</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">1. Состояние онкологической помощи населению России в 2014 году. Под ред. А. Д. Каприна, В. В. Старинского, Г. В. Петровой. М.: МНИОИ им. П. А. Герцена – филиал ФГБУ «НМИРЦ» Минздрава России, 2015. [State of oncological care in Russia in 2014. Editors: A. D. Kaprin, V. V. Starinskiy, G. V. Petrova. Moscow: MNIOI imeni P. 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