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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">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">533</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2021-20-4-78-88</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Clear cell sarcoma of the kidney in children: clinical characteristics and treatment results</article-title><trans-title-group xml:lang="ru"><trans-title>Светлоклеточная саркома почки у детей: клинические характеристики и результаты терапии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9625-8625</contrib-id><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>L. A.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>Л. А.</given-names></name></name-alternatives><bio xml:lang="en"><p>a pediatric oncologist at the Department of Clinical Oncology,</p><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>врач-детский онколог отделения клинической онкологии,</p><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>Liliya.smirnova94@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4042-0125</contrib-id><name-alternatives><name xml:lang="en"><surname>Teleshova</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Телешова</surname><given-names>М. В.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>teleshova_m@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0404-6420</contrib-id><name-alternatives><name xml:lang="en"><surname>Merkulov</surname><given-names>N. N.</given-names></name><name xml:lang="ru"><surname>Меркулов</surname><given-names>Н. Н.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>dr.mernick@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9788-0504</contrib-id><name-alternatives><name xml:lang="en"><surname>Mitrofanova</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Митрофанова</surname><given-names>А. М.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>pathmorf@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7317-7104</contrib-id><name-alternatives><name xml:lang="en"><surname>Tereshchenko</surname><given-names>G. V.</given-names></name><name xml:lang="ru"><surname>Терещенко</surname><given-names>Г. В.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>galina.tereshenko@fccho-moscow.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1387-209X</contrib-id><name-alternatives><name xml:lang="en"><surname>Akhaladze</surname><given-names>D. G.</given-names></name><name xml:lang="ru"><surname>Ахаладзе</surname><given-names>Д. Г.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>d.g.akhaladze@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2537-6157</contrib-id><name-alternatives><name xml:lang="en"><surname>Nechesnyuk</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Нечеснюк</surname><given-names>А. В.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>al.nechesnyuk@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7479-0007</contrib-id><name-alternatives><name xml:lang="en"><surname>Utalieva</surname><given-names>D. T.</given-names></name><name xml:lang="ru"><surname>Уталиева</surname><given-names>Д. Т.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>dinara.abdulina.1993@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8313-9056</contrib-id><name-alternatives><name xml:lang="en"><surname>Usychkina</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Усычкина</surname><given-names>А. Ю.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>usychkina@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3767-4477</contrib-id><name-alternatives><name xml:lang="en"><surname>Shamanskaya</surname><given-names>T. V.</given-names></name><name xml:lang="ru"><surname>Шаманская</surname><given-names>Т. В.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>shmanskaya.tatyana@mail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3704-8783</contrib-id><name-alternatives><name xml:lang="en"><surname>Kachanov</surname><given-names>D. Yu.</given-names></name><name xml:lang="ru"><surname>Качанов</surname><given-names>Д. Ю.</given-names></name></name-alternatives><bio xml:lang="en"><p>1 Samory Mashela St., Moscow 117997</p></bio><bio xml:lang="ru"><p>117997, Москва, ул. Саморы Машела, 1</p></bio><email>kachanov78@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-12-22" publication-format="electronic"><day>22</day><month>12</month><year>2021</year></pub-date><volume>20</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>78</fpage><lpage>88</lpage><history><date date-type="received" iso-8601-date="2021-09-17"><day>17</day><month>09</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-10-18"><day>18</day><month>10</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hemoncim.com/jour/article/view/533">https://hemoncim.com/jour/article/view/533</self-uri><abstract xml:lang="en"><p>Clear cell sarcoma of the kidney (CCSK) is a rare malignant renal tumor in children, which accounts for 2–5% of pediatric kidney malignancies. The aim of the study was to analyze the results of therapy of patients with CCSK treated in Dmitry Rogachev National Medical Research Center оf Pediatric Hematology, Oncology and Immunology. Retrospective analysis of patients with a histologically confirmed diagnosis of CCSK treated for the period 01.2012–02.2020 (98 months) was done. The study was approved by the Independent Ethics Committee and the Scientific Council of the D. Rogachev NMRCPHOI of the Ministry of Healthcare of the Russian Federation. Demographic characteristics, clinical symptoms, methods of diagnosis, and treatment modalities were analyzed. Patients were treated according to the protocols of the SIOP-RTSG group (SIOP 93-01, SIOP-2001, SIOP-RTSG-2016). The stage was assigned according to the SIOP classification. Overall and event-free survival was assessed by the Kaplan–Mayer method. The analysis of the results was carried out on 01.03.2021. The analysis included 10 patients with CCSK. The median age at the time of diagnosis of CCSK was 30.1 months (range 13.5–70.8 months). All patients were male. The duration from the onset of the first symptoms/detection of the tumor to the diagnosis was 0.8 months (range 0.1–3.2 months). The diagnosis was established on the basis of clinical and radiological data (n = 9) and biopsy (n = 1). Distant metastases at the time of diagnosis were detected in 1 (10%) patient (localization of metastases - lungs). The median tumor volume was 439 cm3 (range 256–996 cm3 ). Preoperative chemotherapy was performed in all patients (AV regimen (actinomycin D, doxorubicin) in 7 (70%) patients). Assessment of response after preoperative chemotherapy showed tumor regression in 3/10 (in 1/7 with AV regimen), tumor progression in 5 and stable disease in 2 patients. Surgical treatment in the extent of nephrectomy was performed in all patients. In 1 (10%) case, intraoperative tumor rupture was documented. Distribution of patients by local stages: I – 4/10 (40%), II – 2/10 (20%), III – 4/10 (40%) (including 1 patient with distant metastases). In 1 patient, a left thoracotomy was performed to exclude lung metastases. Adjuvant chemotherapy was performed in all patients in accordance with the relevant protocols of the high-risk group: 7 – 4–5-drug regimen, 3 – AVD regimen (actinomycin D, vincristine, doxorubicin). Radiation therapy was performed in 6/10 (60%) patients. Outcomes: 9/10 (90%) – alive, 1/10 (10%) patient died (non-tumor-related death). 3-year event-free survival and overall survival were 78.8% (95% confidence interval (CI) 52.5–100) and 90.0% (95% CI 71.4–100) respectively. Intensive program therapy in patients with CCSK allows to achieve satisfactory results of treatment. </p></abstract><trans-abstract xml:lang="ru"><p>Светлоклеточная саркома почки (СКСП) – редкое злокачественное новообразование у детей, на долю которого приходится 2–5% всех опухолей почек. Целью исследования явилось изучение результатов терапии пациентов с СКСП, получавших лечение в условиях НМИЦ ДГОИ им. Дмитрия Рогачева. Проведен ретроспективный анализ пациентов с гистологически подтвержденным диагнозом СКСП, получавших лечение за период c января 2012 г. по февраль 2020 г. (98 мес). Данное исследование одобрено независимым этическим комитетом и утверждено решением ученого совета НМИЦ ДГОИ им. Дмитрия Рогачева. Анализировались демографические характеристики, клинические симптомы, метод постановки диагноза, объем проведенной терапии, исходы. Пациенты получали лечение по протоколам группы SIOP-RTSG (SIOP 93-01, SIOP-2001, SIOPRTSG-2016). Оценка распространенности процесса проводилась по классификации SIOP. Общая и бессобытийная выживаемость оценивались по методу Каплана–Майера. Анализ выживаемости проведен на 01.03.2021. В исследование включены 10 пациентов с СКСП. Медиана возраста на момент постановки диагноза СКСП составила 30,1 месяца (разброс 13,5–70,8 месяца). Все пациенты были лицами мужского пола. Длительность от возникновения первых симптомов/выявления опухоли до постановки диагноза составила 0,8 мес (разброс 0,1–3,2 мес). Диагноз установлен на основании клинико-рентгенологических данных (n = 9) и гистологического исследования биоптата опухоли (n = 1). Отдаленные метастазы на момент постановки диагноза выявлены у 1 (10%) пациента (локализация метастазов – легкие). Медиана объема опухоли составила 439 см3 (разброс 256–996 см3 ). Предоперационная полихимиотерапия (ПХТ) проведена всем больным (режим AV (актиномицин Д, винкристин) у 7 (70%) пациентов). При оценке динамики размеров опухоли после предоперационной ПХТ отмечено ее сокращение у 3/10 пациентов (у 1/7 при режиме AV), увеличение у 5/10 и стабилизация у 2/10 больных. Хирургическое лечение в объеме нефрэктомии проведено у всех пациентов. В 1 (10%) случае документирован интраоперационный разрыв опухоли. У 1 (10%) больного проведена торакотомия слева для исключения легочных метастазов. Распределение пациентов по локальным стадиям: I стадия – 4/10 (40%), II стадия – 2/10 (20%), III стадия – 4/10 (40%) (включая 1 больного с отдаленными метастазами). Адъювантная химиотерапия проводилась всем пациентам в соответствии со схемой лечения группы высокого риска: 7 пациентов получили 4–5-компонентный режим терапии, 3 – режим AVD (актиномицин Д, винкристин, доксорубицин). Лучевая терапия проводилась 6/10 (60%) пациентам. Исходы: 9/10 (90%) – живы, 1/10 (10%) пациент погиб (смерть, не связанная с опухолью). Трехлетняя бессобытийная выживаемость и общая выживаемость составили 78,8% (95% доверительный интервал (ДИ) 52,5–100) и 90,0% (95% ДИ 71,4–100) соответственно. Проведение комплексной интенсивной программной терапии у пациентов с СКСП позволяет добиться удовлетворительных результатов. </p></trans-abstract><kwd-group xml:lang="en"><kwd>clear cell sarcoma of the kidney</kwd><kwd>polychemotherapy</kwd><kwd>radiation therapy</kwd><kwd>children</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>светлоклеточная саркома почки</kwd><kwd>полихимиотерапия</kwd><kwd>лучевая терапия</kwd><kwd>дети</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gooskens S.L., Furtwängler R., Vujanic G.M., Dome J.S., Graf N., van den Heuvel-Eibrink M.M. Clear cell sarcoma of the kidney: a review. Eur J Cancer 2012; 48 (14): 2219– 26. DOI: 10.1016/j.ejca.2012.04.009</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Kidd J.M. Exclusion of certain renal neoplasms from the category of Wilms’ tumor. 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