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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">1434</article-id><article-id pub-id-type="doi">10.17650/1726-9776-2021-17-2-104-111</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. URINARY BLADDER CANCER</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ МОЧЕПОЛОВОЙ СИСТЕМЫ. Рак мочевого пузыря</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Transurethral resection of bladder cancer involving the orifice of the ureter</article-title><trans-title-group xml:lang="ru"><trans-title>Трансуретральная резекция карциномы мочевого пузыря, распространяющейся на устье мочеточника</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Andrey I. Novikov.</p><p>68а Leningradskaya St., Pesochny Settl., Saint-Petersburg 197758.</p></bio><bio xml:lang="ru"><p>Новиков Андрей Иванович.</p><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68а.</p></bio><email>novikov_urol@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9710-2406</contrib-id><name-alternatives><name xml:lang="en"><surname>Leonenkov</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Леоненков</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68а Leningradskaya St., Pesochny Settl., Saint-Petersburg 197758.</p></bio><bio xml:lang="ru"><p>Леоненков Роман Викторович.</p><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68а.</p><p>SPIN-код: 6603-4090</p></bio><email>rovile@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Temkin</surname><given-names>D. B.</given-names></name><name xml:lang="ru"><surname>Темкин</surname><given-names>Д. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>6 Akademika Pavlova St., Murmansk 183032.</p></bio><bio xml:lang="ru"><p>183032 Мурманск, ул. Академика Павлова, 6.</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Borovik</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Боровик</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>6 Akademika Pavlova St., Murmansk 183032.</p></bio><bio xml:lang="ru"><p>183032 Мурманск, ул. Академика Павлова, 6.</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shpilenya</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Шпиленя</surname><given-names>Е. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>41 Kirochnaya St., Saint-Petersburg 191015.</p></bio><bio xml:lang="ru"><p>191015 Санкт-Петербург, ул. Кирочная, 41.</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Alferova</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Алферова</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>41 Kirochnaya St., Saint-Petersburg 191015.</p></bio><bio xml:lang="ru"><p>191015 Санкт-Петербург, ул. Кирочная, 41.</p></bio><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Saint-Petersburg Clinical Scientific and Practical Center for Specialized Types of Medical Care (oncological)</institution></aff><aff><institution xml:lang="ru">Санкт-Петербургский клинический научно-практический центр специализированных видов медицинской помощи (онкологический)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">P.A. Bayandin Murmansk Regional Clinical Hospital</institution></aff><aff><institution xml:lang="ru">Мурманская областная клиническая больница им. П.А. Баяндина</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Северо-Западный государственный медицинский университет им. И.И. Мечникова Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-07-25" publication-format="electronic"><day>25</day><month>07</month><year>2021</year></pub-date><volume>17</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>104</fpage><lpage>111</lpage><history><date date-type="received" iso-8601-date="2021-04-02"><day>02</day><month>04</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-06-29"><day>29</day><month>06</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://oncourology.abvpress.ru/oncur/article/view/1434">https://oncourology.abvpress.ru/oncur/article/view/1434</self-uri><abstract xml:lang="en"><p>In 90-95 % of cases, urothelial cancer primarily affects the bladder and in about 5-49 % of patients it can be located near or completely close the orifice of the ureter. Metachronous urothelial cancer of the upper urinary tract occurs, as a rule, 3 or more years after transurethral resection of the primary bladder tumor or radical cystectomy, and its frequency with involvement of the ureteral orifice ranges from 0 to 20 %, reaching 51 %. Currently, there are no clear recommendations and diagnostic and treatment algorithm for the management of this category of patients. This review examines the frequency, possible causes and risk factors for recurrence of upper urinary tract tumors, indications for organ-preserving treatment, features of surgical technique for transurethral resection of ureteral orifice tumors, emerging complications and methods of their prevention.</p></abstract><trans-abstract xml:lang="ru"><p>Уротелиальный рак в 90-95 % случаев первично поражает мочевой пузырь и только у 5-49 % пациентов находится вблизи устья мочеточника или полностью закрывает его. Метахронный уротелиальный рак верхних мочевыводящих путей возникает, как правило, через 3 и более года после трансуретральной резекции первичной опухоли мочевого пузыря или радикальной цистэктомии, а его частота при вовлечении устья мочеточника колеблется от 0 до 20 %, по некоторым данным достигая 51 %. В настоящее время нет четких рекомендаций и лечебно-диагностического алгоритма по ведению этой категории больных. В статье приведены эпидемиологические данные, рассмотрены возможные причины и факторы риска развития рецидивов уротелиального рака верхних мочевыводящих путей, описаны показания к органосохраняющему лечению, особенности хирургической техники при трансуретральной резекции опухоли устья мочеточника, возникающие осложнения и методы их профилактики.</p></trans-abstract><kwd-group xml:lang="en"><kwd>bladder cancer</kwd><kwd>urothelial cancer of the upper urinary tract</kwd><kwd>ureteral orifice</kwd><kwd>transurethral resection</kwd><kwd>vesicoureteral reflux</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак мочевого пузыря</kwd><kwd>уротелиальный рак верхних мочевыводящих путей</kwd><kwd>устье мочеточника</kwd><kwd>трансуретральная резекция</kwd><kwd>пузырно-мочеточниковый рефлюкс</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Siegel R.L., Miller K.D., Jemal A. Cancer statistics, 2019. 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