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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">656</article-id><article-id pub-id-type="doi">10.17650/1726-9776-2017-13-3-34-38</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. RENAL CANCER</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ МОЧЕПОЛОВОЙ СИСТЕМЫ. Рак почки</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Multilocular cystic renal neoplasm of low malignant potential: experience of N.N. Lopatkin Scientific Research Institute of Urology and Interventional Radiology</article-title><trans-title-group xml:lang="ru"><trans-title>Мультилокулярная кистозная почечная неоплазия низкого злокачественного потенциала: опыт НИИ урологии и интервенционной радиологии им. Н.А. Лопаткина</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Alekseev</surname><given-names>B. Ya.</given-names></name><name xml:lang="ru"><surname>Алексеев</surname><given-names>Б. Я.</given-names></name></name-alternatives><bio xml:lang="en"><p>Build. 1, 51 3rd Parkovaya St., Moscow 105425, Russia</p></bio><bio xml:lang="ru"><p>Россия, 105425 Москва, ул. 3-я Парковая, 51, стр. 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shevchuk</surname><given-names>I. M.</given-names></name><name xml:lang="ru"><surname>Шевчук</surname><given-names>И. М.</given-names></name></name-alternatives><bio xml:lang="en"><p>Build. 1, 51 3rd Parkovaya St., Moscow 105425, Russia</p></bio><bio xml:lang="ru"><p>Россия, 105425 Москва, ул. 3-я Парковая, 51, стр. 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Efremov</surname><given-names>G. D.</given-names></name><name xml:lang="ru"><surname>Ефремов</surname><given-names>Геннадий Дмитриевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 1, 51 3rd Parkovaya St., Moscow 105425, Russia</p></bio><bio xml:lang="ru"><p>Заведующий отделом "Патологический анатомии с группой молекулярной генетики"</p><p>Россия, 105425 Москва, ул. 3-я Парковая, 51, стр. 1</p></bio><email>efremov.gen@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Samoylova</surname><given-names>S. I.</given-names></name><name xml:lang="ru"><surname>Самойлова</surname><given-names>С. И.</given-names></name></name-alternatives><bio xml:lang="en"><p>Build. 1, 51 3rd Parkovaya St., Moscow 105425, Russia</p></bio><bio xml:lang="ru"><p>Россия, 105425 Москва, ул. 3-я Парковая, 51, стр. 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Lopatkin Scientific Research Institute of Urology and Interventional Radiology – branch of the National Medical Research Radiological Center, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский институт урологии и интервенционной радиологии им. Н.А. Лопаткина – филиал ФГБУ «Национальный медицинский исследовательский центр радиологии» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-09-30" publication-format="electronic"><day>30</day><month>09</month><year>2017</year></pub-date><volume>13</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>34</fpage><lpage>38</lpage><history><date date-type="received" iso-8601-date="2017-02-10"><day>10</day><month>02</month><year>2017</year></date><date date-type="accepted" iso-8601-date="2017-04-03"><day>03</day><month>04</month><year>2017</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/656">https://oncourology.abvpress.ru/oncur/article/view/656</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> Multilocular cystic renal cell neoplasm of low malignant potential (MCRCNLMP) or multilocular cystic renal cell carcinoma (MCRCC) is classified as a distinct nosological unit. Currently, in literature there are no results of studies based on a large number of observations.<bold/></p><p><bold>Objectives:</bold> to systemize clinical and pathomorphological characteristics of MCRCNLMP.<bold/></p><p><bold>Materials and methods</bold>. In the period from January 2011 to December 2015 in the clinic of the N.N. Lopatkin Scientific Research Institute of Urology and Interventional Radiology, 32 cases of MCRCNLMP were diagnosed among 588 patients. We have studied clinical and morphological characteristics of this disease, surgical approaches to its treatment, and long-term results, which we present in this article.<bold/></p><p><bold>Results.</bold> MCRCNLMP comprised 5.44 % of all histological cases of RCC. The majority (75 %) of patients didn’t have clinical manifestations of the disease. Т1а tumor stage corresponded to 65.6 % of tumors, Т1b stage to 28.1 %, and Т2 stage only to 6.2 %. In all cases neoplasm was characterized by moderate and mild differentiation (G1–2) per the grading system of the International Society of Urological Pathology (ISUP). Only 25 % of patients had normal body mass index. In 31 of 32 patients, long-term outcomes were observed. Median follow-up duration was 29 (14–66) months. Progression of the disease wasn’t observed in any of the patients.<bold/></p><p><bold>Conclusion.</bold> Patients with MCRCNLMP have the best oncological prognosis among patients with RCC. The necessity of classification of this tumor in accordance with the TNM system is currently dubious. Only organ-preserving surgeries should be used in treatment of the disease. For cases of MCRCNLMP, it is recommended to increase periods of control examinations proposed for patients with RCC, and diagnostic manipulations should be minimal.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Мультилокулярная кистозная почечная неоплазия низкого злокачественного потенциала (МКПННЗП), или мультилокулярный кистозный почечно-клеточный рак (ПКР), в настоящее время выделена в отдельную нозологическую единицу. В литературе не опубликованы результаты крупных исследований, основанных на большом количестве наблюдений.<bold/></p><p><bold>Цель исследования</bold> – систематизация клинических и патоморфологических характеристик МКПННЗП.<bold/></p><p><bold>Материалы и методы.</bold> В период с января 2011 г. по декабрь 2015 г. в клинике НИИ урологии и интервенционной радиологии им. Н. А. Лопаткина среди 588 больных ПКР диагностированы 32 случая МКПННЗП. Нами были изучены и продемонстрированы клинико-морфологические характеристики данного заболевания, хирургические подходы к его лечению и отдаленные результаты.<bold/></p><p><bold>Результаты</bold>. МКПННЗП составила 5,44 % случаев среди всех гистологических форм ПКР. Большинство (75 %) больных не имели клинических проявлений заболевания. Стадия опухолевого процесса Т1а соответствовала 65,6 % опухолей, стадия Т1b – 28,1 % и стадия Т2 – только 6,2 %. Во всех случаях неоплазия характеризовалась средней и умеренной дифференцировкой (G1–2) ядерной градации Интернационального общества урологических патологов (International Society of Urological Pathology, ISUP). Отмечено, что только 25 % больных имели нормальный показатель индекса массы тела. У 31 из 32 пациентов прослежены отдаленные результаты. Медиана наблюдения составила 29 (14–66) мес. Ни у одного пациента не выявлено признаков прогрессирования заболевания.<bold/></p><p><bold>Заключение</bold>. Больные МКПННЗП обладают наилучшим онкологическим прогнозом среди пациентов с ПКР. Необходимость классификации этой опухоли по системе TNM в настоящее время является сомнительной. В качестве хирургического лечения следует использовать только органосохраняющие операции. В случае МКПННЗП рекомендуется увеличить периоды между контрольными обследованиями, предложенные для больных ПКР, а комплекс диагностических манипуляций должен быть сведен до минимума.</p></trans-abstract><kwd-group xml:lang="en"><kwd>multilocular cystic renal neoplasia of low malignant potential</kwd><kwd>tumor of the kidney</kwd><kwd>prognosis</kwd><kwd>stage</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>мультилокулярная кистозная почечная неоплазия низкого злокачественного потенциала</kwd><kwd>опухоль почки</kwd><kwd>прогноз</kwd><kwd>стадия</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. Злокачественные новообразования в России в 2015 году (заболеваемость и смертность). Под ред. А.Д. Каприна, В.В. Старинского, Г.В. Петровой. М.: МНИОИ им. П.А. Герцена – филиал ФГБУ «НМИРЦ» Минздрава России, 2016. 250 с. 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