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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">708</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2024-23-1-139-145</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL OBSERVATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Priapism at the onset of acute lymphoblastic leukemia in a 12-year-old child</article-title><trans-title-group xml:lang="ru"><trans-title>Приапизм в дебюте острого лимфобластного лейкоза у ребенка: описание клинического случая</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7794-9095</contrib-id><name-alternatives><name xml:lang="en"><surname>Inyoshina</surname><given-names>A. D.</given-names></name><name xml:lang="ru"><surname>Инёшина</surname><given-names>А. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Алиса Д. Инёшина</p><p>Санкт-Петербург</p></bio><email>alisaineshinansk@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6758-1546</contrib-id><name-alternatives><name xml:lang="en"><surname>Kapustina</surname><given-names>А. S.</given-names></name><name xml:lang="ru"><surname>Капустина</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Анна С. Капустина</p><p>Санкт-Петербург</p></bio><email>kapustina-annna@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5293-9568</contrib-id><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>А. Yu.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Анна Ю. Смирнова</p><p>Санкт-Петербург</p></bio><email>misha12_09@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8685-6525</contrib-id><name-alternatives><name xml:lang="en"><surname>Grin</surname><given-names>Е. А.</given-names></name><name xml:lang="ru"><surname>Гринь</surname><given-names>Е. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Евгений А. Гринь</p><p>Санкт-Петербург</p></bio><email>sv.lukaendouro@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Baratashvili</surname><given-names>G. G.</given-names></name><name xml:lang="ru"><surname>Бараташвили</surname><given-names>Г. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Георгий Г. Бараташвили</p><p>Санкт-Петербург</p></bio><email>barat777@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3957-1615</contrib-id><name-alternatives><name xml:lang="en"><surname>Kagantsov</surname><given-names>I. М.</given-names></name><name xml:lang="ru"><surname>Каганцов</surname><given-names>И. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Saint Petersburg</p></bio><bio xml:lang="ru"><p>Илья М. Каганцов</p><p>Санкт-Петербург</p></bio><email>ilkagan@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2003-0982</contrib-id><name-alternatives><name xml:lang="en"><surname>Dinikina</surname><given-names>Yu. V.</given-names></name><name xml:lang="ru"><surname>Диникина</surname><given-names>Ю. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Yulia V. Dinikina, Cand. Med. Sci., Head of the Department</p><p>Department of Chemotherapy for Cancer and Hematologic Diseases and Bone Marrow Transplantation in Children</p><p>197341; 2 Akkuratova St., St. Petersburg</p></bio><bio xml:lang="ru"><p>Юлия Валерьевна Диникина, канд. мед. наук, заведующая отделением</p><p>отделение химиотерапии онкогематологических заболеваний и трансплантации костного мозга  для детей</p><p>197341; ул. Аккуратова, 2; Санкт-Петербург</p></bio><email>dinikina_yuv@almazovcentre.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">The Almazov National Medical Research Centre of Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр им. В.А. Алмазова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Center for Endoscopic Urology and New Technologies at the St. Luke Clinical Hospital</institution></aff><aff><institution xml:lang="ru">Городской центр эндоскопической урологии и новых технологий СПб ГБУЗ «Клиническая больница Святителя Луки»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-19" publication-format="electronic"><day>19</day><month>04</month><year>2024</year></pub-date><volume>23</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>139</fpage><lpage>145</lpage><history><date date-type="received" iso-8601-date="2023-03-15"><day>15</day><month>03</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-03-27"><day>27</day><month>03</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2023</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/708">https://hemoncim.com/jour/article/view/708</self-uri><abstract xml:lang="en"><p>   Acute lymphoblastic leukemia (ALL) is the most common cancer in the clinical practice of pediatric oncology/hematology. At the onset of the disease, patients can develop such a life-threatening complication as hyperleukocytosis with leukostasis that can manifest in many different ways, including ischemic priapism, an extremely rare type of leukostasis in children with ALL. Apart from death associated with hyperleukocytosis caused by the underlying disease, inadequate and poorly timed specific therapy and supportive care can lead to erectile dysfunction, impotence or intermittent priapism in the future. In this article, we report an extremely rare clinical case of ischemic priapism in a 12-year-old patient that developed at the onset of ALL and was the only manifestation of the disease as well as the reason for admission to hospital. The patient's parents gave consent to the use of their child's data, including photographs, for research purposes and in publications. Here, we analyzed special aspects of this complication, described modern treatment strategies and provided an international literature review. We emphasize the importance of urgent care delivery due to the critical prognostic significance of timely and adequate treatment provided by a multidisciplinary team.</p></abstract><trans-abstract xml:lang="ru"><p>   Острый лимфобластный лейкоз (ОЛЛ) является самым распространенным онкологическим заболеванием в практике детского онколога/гематолога. При этом жизнеугрожающим осложнением в дебюте ОЛЛ может быть гиперлейкоцитоз с формированием лейкостаза с различными клиническими проявлениями. Крайне редкой формой лейкостаза у детей с ОЛЛ является ишемический приапизм. В таких случаях помимо рисков летальности, ассоциированной с гиперлейкоцитозом в рамках основного заболевания, отсутствие адекватного объема своевременной специфической и сопроводительной терапии может стать причиной эректильной дисфункции/импотенции/перемежающегося приапизма в отдаленном периоде. В статье представлено крайне редкое клиническое наблюдение ишемического приапизма у пациента 12 лет в дебюте ОЛЛ как единственного симптома заболевания, явившегося причиной обращения за медицинской помощью. Родители пациента дали согласие на использование информации, в том числе фотографий ребенка, в научных исследованиях и публикациях. В статье проанализированы особенности течения указанного осложнения с описанием современных подходов к лечению и обзором данных международной литературы. Нами подчеркнуты необходимость скоропомощного реагирования ввиду критического прогностического значения сроков и объема оказываемой медицинской помощи в составе мультидисциплинарной команды специалистов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>acute lymphoblastic leukemia</kwd><kwd>children</kwd><kwd>priapism</kwd><kwd>hyperleukocytosis</kwd><kwd>leukapheresis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>острый лимфобластный лейкоз</kwd><kwd>дети</kwd><kwd>приапизм</kwd><kwd>гиперлейкоцитоз</kwd><kwd>лейкоцитаферез</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was carried out with financial support from the Ministry of Science and Higher Education of the Russian Federation (agreement No. 075-15-2022-301)</funding-statement><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Министерства науки и высшего образования Российской Федерации (соглашение № 075-15-2022-301)</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Hunger S.P., Mullighan C.G. 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