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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">Bone and soft tissue sarcomas, tumors of the skin</journal-id><journal-title-group><journal-title xml:lang="en">Bone and soft tissue sarcomas, tumors of the skin</journal-title><trans-title-group xml:lang="ru"><trans-title>Саркомы костей, мягких тканей и опухоли кожи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2219-4614</issn><issn publication-format="electronic">2782-3687</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">341</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>SOFT TISSUE SARCOMAS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>САРКОМЫ МЯГКИХ ТКАНЕЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">A case of evaluation of the effectiveness of neoadjuvant radiotherapy in patient with pecoma of pararectal area</article-title><trans-title-group xml:lang="ru"><trans-title>Случай оценки эффективности неоадъювантного лучевого лечения больного пекомой параректальной клетчатки</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nazarenko</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Назаренко</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Musaev</surname><given-names>E. R.</given-names></name><name xml:lang="ru"><surname>Мусаев</surname><given-names>Э. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Medvedev</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Медведев</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zaspa</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Заспа</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p><p> </p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Romanov</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Романов</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><email>romanovronc@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sofronov</surname><given-names>D. I.</given-names></name><name xml:lang="ru"><surname>Софронов</surname><given-names>Д. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Boldyreva</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Болдырева</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>г. Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin Russian Cancer Research Center Ministry of Health of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ «Российский онкологический научный центр им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">The Moscow P.A. Gertsen Research Institute of Oncology</institution></aff><aff><institution xml:lang="ru">МНИОИ им. П.А. Герцена</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-01-16" publication-format="electronic"><day>16</day><month>01</month><year>2017</year></pub-date><volume>9</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>42</fpage><lpage>45</lpage><history><date date-type="received" iso-8601-date="2022-01-16"><day>16</day><month>01</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-01-16"><day>16</day><month>01</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Nazarenko A.V., Musaev E.R., Medvedev S.V., Zaspa O.A., Romanov D.S., Sofronov D.I., Boldyreva V.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Назаренко А.В., Мусаев Э.Р., Медведев С.В., Заспа О.А., Романов Д.С., Софронов Д.И., Болдырева В.А.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Nazarenko A.V., Musaev E.R., Medvedev S.V., Zaspa O.A., Romanov D.S., Sofronov D.I., Boldyreva V.A.</copyright-holder><copyright-holder xml:lang="ru">Назаренко А.В., Мусаев Э.Р., Медведев С.В., Заспа О.А., Романов Д.С., Софронов Д.И., Болдырева В.А.</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://sarbon.abvpress.ru/jour/article/view/341">https://sarbon.abvpress.ru/jour/article/view/341</self-uri><abstract xml:lang="en"><p>PEComa is a mesenchymal malignant tumor, which optimal treatment strategy remains undeveloped because of the rarity of occurrence of this tumor. The main treatment is surgery, but investigators continue to search for solutions that could enhance the effectiveness of resection and improve long-term results. This paper presents the case of the relative effectiveness of preoperative hormonal and radiation therapy patient with pelvic PEComa: fixed degree of therapeutic effect in remote tumor was higher than that in the above large meta analysis.</p></abstract><trans-abstract xml:lang="ru"><p>Пекома – мезенхимальная злокачественная опухоль, оптимальная тактика лечения которой остается невыработанной из-за редкости встречаемости этой опухоли. Основным методом лечения является хирургический, однако поиск решений, которые могли бы повысить эффективность резекции и улучшить отдаленные результаты, продолжается. В данной работе представлен случай относительной эффективности предоперационного гормонально-лучевого лечения больного пекомой параректальной клетчатки: зафиксированная степень лечебного патоморфоза в удаленной опухоли оказалась выше таковой в приведенном крупном мета-анализе.</p></trans-abstract><kwd-group xml:lang="en"><kwd>PEComa</kwd><kwd>neoadjuvant treatment</kwd><kwd>therapeutic effect</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пекома</kwd><kwd>неоадъювантное лечение</kwd><kwd>лечебный патоморфоз</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. Fadare O., Parkash V., Yilmaz Y., Mariappan M.R., Ma L., Hileeto D., Qumsiyeh M.B., Hui P. Perivascular epithelioid cell tumor (PEComa) of the uterine cervix associated with intraabdominal «PEComatosis»: A clinicopathological study with comparative genomic hybridization analysis. World J. Surg. 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