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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">Cancer Urology</journal-id><journal-title-group><journal-title xml:lang="en">Cancer Urology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкоурология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9776</issn><issn publication-format="electronic">1996-1812</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">581</article-id><article-id pub-id-type="doi">10.17650/1726-9776-2016-12-2-92-96</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>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">Current view: leiomyosarcoma of the veins of the retroperitoneum. Case histories review</article-title><trans-title-group xml:lang="ru"><trans-title>Современные представления о лейомиосаркомах вен забрюшинного пространства. Обзор клинических случаев</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pavlov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Павлов</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Garmash</surname><given-names>S. V.</given-names></name><name xml:lang="ru"><surname>Гармаш</surname><given-names>С. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Isaev</surname><given-names>T. K.</given-names></name><name xml:lang="ru"><surname>Исаев</surname><given-names>Т. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gafanov</surname><given-names>R. A.</given-names></name><name xml:lang="ru"><surname>Гафанов</surname><given-names>Р. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>docgra@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kravtsov</surname><given-names>I. B.</given-names></name><name xml:lang="ru"><surname>Кравцов</surname><given-names>И. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Russian Scientific Center of Radiology and Nuclear Medicine at the 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">86 Profsoyuznaya St., Moscow, 117997, Russia</institution></aff><aff><institution xml:lang="ru">Россия, 117997, ГСП-7, Москва, ул. Профсоюзная, 86</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2016-06-30" publication-format="electronic"><day>30</day><month>06</month><year>2016</year></pub-date><volume>12</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>92</fpage><lpage>96</lpage><history><date date-type="received" iso-8601-date="2016-06-24"><day>24</day><month>06</month><year>2016</year></date><date date-type="accepted" iso-8601-date="2016-06-24"><day>24</day><month>06</month><year>2016</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://oncourology.abvpress.ru/oncur/article/view/581">https://oncourology.abvpress.ru/oncur/article/view/581</self-uri><abstract xml:lang="en"><p>Leiomyosarcoma of the veins of the retroperitoneum – the rare malignant non-organ mesodermal formation, derived from the smooth-muscle tissue of the vessel wall. These slow-growing tumors with the delayed symptoms are often advanced. The leiomyosarcoma of the renal vein is the rarer oncological disease. The treatment of this condition is mainly surgical, often with the chemoradiation. In view of the rarity of these malignant diseases, the every case history review is very important for the science. There are two case history reports with the description of the diagnosis and treatment problems.</p></abstract><trans-abstract xml:lang="ru"><p>Лейомиосаркомы вен забрюшинного пространства – редкие злокачественные неорганные образования мезодермального происхождения, развивающиеся из гладкой мышечной ткани стенки сосуда. Это медленно растущие опухоли, которые характеризуются довольно поздней симптоматикой и диагностируются уже при запущенных формах. Лейомиосаркомы почечной вены являются еще более редким онкологическим заболеванием. Лечение данной патологии в основном хирургическое, часто дополняется химиолучевым. Учитывая редкость данных злокачественных заболеваний, репортирование каждого клинического случая имеет высокую научную ценность и значимость. В статье приведены 2 клинических случая с описанием проблем диагностики и лечения пациентов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>leiomyosarcoma</kwd><kwd>retroperitoneum tumors</kwd><kwd>non-organ formations</kwd><kwd>sarcoma</kwd><kwd>vascular tumor</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>лейомиосаркома</kwd><kwd>опухоли забрюшинного пространства</kwd><kwd>неорганные образования</kwd><kwd>саркома</kwd><kwd>сосудистые 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. Guerrero M.A., Cross C.A., Lin P.H. et al. Inferior vena cava reconstruction using fresh inferior vena cava allograft following caval resection for leiomyosarcoma: midterm results. 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