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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">usfd</journal-id><journal-title-group><journal-title xml:lang="ru">Ультразвуковая и функциональная диагностика</journal-title><trans-title-group xml:lang="en"><trans-title>Ultrasound &amp; Functional Diagnostics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-0771</issn><issn pub-type="epub">2408-9494</issn><publisher><publisher-name>Vidar Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">usfd-241</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>Case Reports</subject></subj-group></article-categories><title-group><article-title>Типичные эхографические и компьютерно-томографические проявления периренальной формы лимфомы почки. Картина ермолки</article-title><trans-title-group xml:lang="en"><trans-title>Typical Ultrasound and Computed Tomography Features of the Perirenal Lymphoma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Громов</surname><given-names>Александр Игоревич</given-names></name><name name-style="western" xml:lang="en"><surname>Gromov</surname><given-names>A. I.</given-names></name></name-alternatives><email xlink:type="simple">gai8@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ГБУЗ г. Москвы “Научно-практический центр медицинской радиологии Департамента здравоохранения города Москвы”; ФГБОУ ВО “Московский государственный медико-стоматологический университет имени А.И. Евдокимова” Министерства здравоохранения Российской Федерации<country>Россия</country></aff><aff xml:lang="en">Scientific and Practical Center of Medical Radiology; Moscow State University of Medicine and Dentistry named after A.I. Evdokimov<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>91</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Громов А.И., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Громов А.И.</copyright-holder><copyright-holder xml:lang="en">Gromov A.I.</copyright-holder><license 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://usfd.vidar.ru/jour/article/view/241">https://usfd.vidar.ru/jour/article/view/241</self-uri><abstract><p>Представлено три наблюдения периренальной формы лимфомы почки. Во всех случаях опухоль имела вид дополнительного образования, охватывающего часть почки. Образование было гипоэхогенно при ультразвуковом исследовании, гиперденсно при компьютерной томографии. В цветокодированных допплерографических режимах в образовании определялись сосуды. При компьютерной томографии с контрастированием образование накапливало контрастный препарат в меньшей степени, чем паренхима почки. Визуализация в образовании сосудов, проникающих из паренхимы почки, и накопление контрастного препарата позволяли отличить опухоль от паранефральной гематомы, уриномы, возрастных изменений перинефральной клетчатки. Предложен термин - симптом ермолки.</p></abstract><trans-abstract xml:lang="en"><p>Three cases of the perirenal lymphoma are presented. Tumor was seen as an encompassing lesion above the kidney in all cases. It appeared as a hypoechoic lesion during the ultrasound examination and hyperdense during the computed tomography. Doppler examination revealed vessels in lesion. Computed tomography showed decreased contrast media accumulation within the lesion comparing with the renal parenchyma. Visualization of vessels penetrating the lesion from the renal parenchyma and contrast media accumulation allowed differentiating tumor from the perinephric hematoma, urinoma, and age related changes of perinephric fat. Yarmulke sign term was suggested to describe this symptom.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ультразвуковое исследование</kwd><kwd>компьютерная томография</kwd><kwd>магнитно-резонансная томография</kwd><kwd>лимфома почки</kwd><kwd>периренальная форма лимфомы почки</kwd><kwd>ultrasound diagnostics</kwd><kwd>computed tomography</kwd><kwd>magnetic resonance imaging</kwd><kwd>renal lymphoma</kwd><kwd>perirenal lymphoma</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Symeonidou C., Standish R., Sahdev A. et al. 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