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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">urovest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник урологии</journal-title><trans-title-group xml:lang="en"><trans-title>Urology Herald</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2308-6424</issn><publisher><publisher-name>Rostov State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21886/2308-6424-2023-11-2-164-170</article-id><article-id custom-type="elpub" pub-id-type="custom">urovest-731</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Муцинозный тубулярный и веретеноклеточный рак с низким содержанием муцина и светлоклеточный почечноклеточный рак почки: редкий клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Mucin-poor mucinous tubular and spindle cell kidney cancer and clear cell renal cell carcinoma: a rare clinical case</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4990-6722</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гребенкин</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grebenkin</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Валерьевич Гребенкин — кандидат медицинских наук; врач-патологоанатом.</p><p>Москва</p></bio><bio xml:lang="en"><p>Evgeny V. Grebenkin — M.D., Cand.Sc.(Med); Pathologist.</p><p>Moscow</p></bio><email xlink:type="simple">grebenkin_urolog@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9663-538X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Малханов</surname><given-names>Ш. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Malhanov</surname><given-names>Sh. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ширип Владимирович Малханов — врач-уролог.</p><p>Обнинск, Калужская обл.</p></bio><bio xml:lang="en"><p>Shirip V. Malhanov — M.D.; Urologist.</p><p>Obninsk, Kaluga region</p></bio><email xlink:type="simple">shiripmalhan1@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2995-7140</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Агибалов</surname><given-names>Д. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Agibalov</surname><given-names>D. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Юрьевич Агибалов — врач-хирург.</p><p>Обнинск, Калужская обл.</p></bio><bio xml:lang="en"><p>Dmitriy Y. Agibalov — M.D.; Surgeon.</p><p>Obninsk, Kaluga region</p></bio><email xlink:type="simple">agibalovd@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7866-6863</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рухадзе</surname><given-names>Г. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Rukhadze</surname><given-names>G. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Отарович Рухадзе — кандидат медицинских наук; врач-онколог.</p><p>Обнинск, Калужская обл.</p></bio><bio xml:lang="en"><p>Georgii O. Rukhadze — M.D., Cand.Sc.(Med); Oncologist.</p><p>Obninsk, Kaluga region</p></bio><email xlink:type="simple">rgo77@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7561-2584</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крючков</surname><given-names>И. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Kryuchkov</surname><given-names>I. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Романович Крючков — врач-патологоанатом.</p><p>Москва</p></bio><bio xml:lang="en"><p>Ivan R. Kryuchkov — M.D.; Pathologist.</p><p>Moscow</p></bio><email xlink:type="simple">ivan_kr95@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9447-3292</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федотов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedotov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Василий Владимирович Федотов – врач-патологоанатом.</p><p>Москва</p></bio><bio xml:lang="en"><p>Vasilii V. Fedotov — M.D., Pathologist.</p><p>Moscow</p></bio><email xlink:type="simple">v.v.fedotoff@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «ЮНИМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>«UNIM» LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Медикал Плюс»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>«Medical Plus» LLC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>19</day><month>07</month><year>2023</year></pub-date><volume>11</volume><issue>2</issue><fpage>164</fpage><lpage>170</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гребенкин Е.В., Малханов Ш.В., Агибалов Д.Ю., Рухадзе Г.О., Крючков И.Р., Федотов В.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Гребенкин Е.В., Малханов Ш.В., Агибалов Д.Ю., Рухадзе Г.О., Крючков И.Р., Федотов В.В.</copyright-holder><copyright-holder xml:lang="en">Grebenkin E.V., Malhanov S.V., Agibalov D.Y., Rukhadze G.O., Kryuchkov I.R., Fedotov V.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.urovest.ru/jour/article/view/731">https://www.urovest.ru/jour/article/view/731</self-uri><abstract><p>Муцинозный тубулярный и веретеноклеточный рак почки является редкой злокачественной опухолью с низкой степенью злокачественности и составляет менее 1% всех новообразований почек. Классическое морфологическое строение опухоли представлено тремя элементами: веретеновидными клетками, протоками и миксоидной или муцинозной стромой. Она характеризуется индолентным течением с низким риском метастазирования и благоприятным исходом. Однако в литературе описаны случаи с рецидивами, метастазами в регионарные лимфатические узлы и отдалёнными метастазами, которые в основном характеризовались высокой ядерной атипией, саркоматоидной трансформацией и другими атипичными морфологическими признаками. Также было представлено несколько случаев муцинозного тубулярного и веретеноклеточного рака почки с низким содержанием муцина и без муцина, что затрудняет проведение дифференциальной диагностики с другими почечно-клеточными раками. Имеются сообщения о случаях муцинозного тубулярного и веретеноклеточного рака с низким содержанием муцина, которые сопровождались рецидивами и метастазами. Таким образом, тщательное наблюдение необходимо даже после полного иссечения, несмотря на преимущественно индолентное клиническое течение опухоли. В данной статье мы сообщаем о редком клиническом случае сочетания муцинозного тубулярного и веретеноклеточного рака с низким содержанием муцина и светлоклеточного почечноклеточного рака почки у пятидесятилетнего мужчины. Представлены результаты клинико-инструментального исследования, а также морфологические особенности обеих опухолей. Ввиду нетипичного морфологического строения муцинозного тубулярного и веретеноклеточного рака постановка окончательного диагноза была возможна с применением иммуногистохимического метода исследования, которое продемонстрировало характерный для данной опухоли иммуногистохимический профиль.</p></abstract><trans-abstract xml:lang="en"><p>Mucinous tubular and spindle cell carcinoma of the kidney is a rare low-grade malignant tumour and accounts for less than 1% of all renal neoplasms. The classic morphological structure of the tumor is represented by three elements: spindle cells, ducts and myxoid or mucinous stroma. This tumor is indolent with a low risk of metastasis and a favorable outcome. However, cases with relapses, metastases to regional lymph nodes, and distant metastases, which were mainly characterised by high nuclear atypia, sarcomatoid transformation and other atypical morphological features are described in the literature. Several cases of mucin-poor and mucin-free mucinous tubular and spindle cell renal cell carcinoma have also been presented, making it difficult to differentiate from other renal cell carcinomas. There are reports of cases of mucin poor mucinous tubular and spindle cell carcinoma, which were accompanied by relapses and metastases. Thus, although the tumour is indolent, careful follow-up is necessary even after radical excision. In this article, we report a rare clinical case of combination of mucin-poor mucinous tubular and spindle cell carcinoma and clear cell renal cell carcinoma of the kidney in a 50-year-old man. The results of clinical and instrumental studies, as well as the morphological features of both tumors are presented. Due to the atypical morphological structure of mucinous tubular and spindle cell carcinoma, the final diagnosis was possible using an immunohistochemical method, which demonstrated the immunohistochemical profile characteristic of this tumour.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>муцинозный тубулярный и веретеноклеточный рак с низким содержанием муцина</kwd><kwd>светлоклеточный почечноклеточный рак</kwd><kwd>первично-множественные опухоли почки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>kidney</kwd><kwd>mucins</kwd><kwd>mucin-poor mucinous tubular and spindle cell carcinoma</kwd><kwd>carcinoma</kwd><kwd>clear cell</kwd><kwd>carcinoma</kwd><kwd>renal cell</kwd><kwd>multiple primary kidney neoplasms</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование не имело спонсорской поддержки</funding-statement><funding-statement xml:lang="en">The study was not sponsored</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Lopez-Beltran A, Scarpelli M, Montironi R, Kirkali Z. 2004 WHO classification of the renal tumors of the adults. 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