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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">Oncohematology</journal-id><journal-title-group><journal-title xml:lang="en">Oncohematology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкогематология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1818-8346</issn><issn publication-format="electronic">2413-4023</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">831</article-id><article-id pub-id-type="doi">10.17650/1818-8346-2023-18-3-18-25</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>HEMATOLOGIC MALIGNANCIES: TREATMENT</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЛЕЧЕНИЕ ГЕМОБЛАСТОЗОВ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Follicular lymphoma in children and adolescents: clinical, diagnostic and therapeutic features</article-title><trans-title-group xml:lang="ru"><trans-title>Фолликулярная лимфома у детей и подростков: клинико-диагностические и терапевтические особенности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1469-2365</contrib-id><name-alternatives><name xml:lang="en"><surname>Valiev</surname><given-names>T. T.</given-names></name><name xml:lang="ru"><surname>Валиев</surname><given-names>Т. Т.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Timur Teymurazovich Valiev</p><p>115478</p><p>23 Kashirskoe Shosse</p><p>119991</p><p>Build. 2, 8 Trubetskaya St.</p><p>Moscow</p></bio><bio xml:lang="ru"><p>Тимур Теймуразович Валиев</p><p>115478</p><p>Каширское шоссе, 23</p><p>119991</p><p>ул. Трубецкая, 8, стр. 2</p><p>Москва</p></bio><email>timurvaliev@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1709-0498</contrib-id><name-alternatives><name xml:lang="en"><surname>Volkova</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Волкова</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>115478</p><p>23 Kashirskoe Shosse</p><p>Moscow</p></bio><bio xml:lang="ru"><p>115478</p><p>Каширское шоссе, 23</p><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2392-3276</contrib-id><name-alternatives><name xml:lang="en"><surname>Postoykina</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Постойкина</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>690078</p><p>27 Prospekt Ostryakova</p><p>Vladivostok</p></bio><bio xml:lang="ru"><p>690078</p><p>пр-кт Острякова, 27</p><p>Владивосток</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3664-2876</contrib-id><name-alternatives><name xml:lang="en"><surname>Abramov</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Абрамов</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>117198</p><p>1 Samory Mashela St.</p><p>Moscow</p></bio><bio xml:lang="ru"><p>117198</p><p>ул. Саморы Машела, 1</p><p>Москва</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-1737-7782</contrib-id><name-alternatives><name xml:lang="en"><surname>Karibova</surname><given-names>A. R.</given-names></name><name xml:lang="ru"><surname>Карибова</surname><given-names>А. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>690078</p><p>27 Prospekt Ostryakova</p><p>Vladivostok</p></bio><bio xml:lang="ru"><p>690078</p><p>пр-кт Острякова, 27</p><p>Владивосток</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Odzharova</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Оджарова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>115478</p><p>23 Kashirskoe Shosse</p><p>Moscow</p></bio><bio xml:lang="ru"><p>115478</p><p>Каширское шоссе, 23</p><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8443-8816</contrib-id><name-alternatives><name xml:lang="en"><surname>Ryabukhina</surname><given-names>Yu. E.</given-names></name><name xml:lang="ru"><surname>Рябухина</surname><given-names>Ю. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>143081</p><p>111 1<sup>st</sup> Uspenskoe Shosse</p><p>Lapino, Moscow region</p></bio><bio xml:lang="ru"><p>143081</p><p>1-е Успенское шоссе, 111</p><p>Московская обл., д. Лапино</p></bio><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1564-424X</contrib-id><name-alternatives><name xml:lang="en"><surname>Zeynalova</surname><given-names>P. A.</given-names></name><name xml:lang="ru"><surname>Зейналова</surname><given-names>П. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>119991</p><p>Build. 2, 8 Trubetskaya St.</p><p>143081</p><p>111 1<sup>st</sup> Uspenskoe Shosse</p><p>Moscow</p><p>Lapino, Moscow region</p></bio><bio xml:lang="ru"><p>119991</p><p>ул. Трубецкая, 8, стр. 2</p><p>143081</p><p>1-е Успенское шоссе, 111</p><p>Москва</p><p>Московская обл., д. Лапино</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff5"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N. N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н. Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">I. M. Sechenov First Moscow State Medical University, Ministry of Health of Russia (Sechenov University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО Первый Московский государственный медицинский университет им. И. М. Сеченова Минздрава России (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Regional Children Clinical Hospital No. 1</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Краевая детская клиническая больница № 1»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Ministry of Health of Russia</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><aff-alternatives id="aff5"><aff><institution xml:lang="en">Clinical Hospital “Lapino” of the “Mother and Child” Group of companies</institution></aff><aff><institution xml:lang="ru">Клинический госпиталь «Лапино» группы компаний «Мать и дитя»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-09-13" publication-format="electronic"><day>13</day><month>09</month><year>2023</year></pub-date><volume>18</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>18</fpage><lpage>25</lpage><history><date date-type="received" iso-8601-date="2023-09-11"><day>11</day><month>09</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-09-11"><day>11</day><month>09</month><year>2023</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://oncohematology.abvpress.ru/ongm/article/view/831">https://oncohematology.abvpress.ru/ongm/article/view/831</self-uri><abstract xml:lang="en"><p>   Ffollicular lymphoma (FL) is one of the most common non-Hodgkin’s lymphomas in adults, while it is a diagnosis of exclusion in adolescents and children. Clinical manifestations of FL in children are represented by long-term asymptomatic lymphadenopathy, less commonly by extranodal areas involvement. treatment standards for FL in children have not been developed and may vary from observational tactics (with the radical resection of a single focus during a biopsy) to the use of radiation therapy and polychemotherapy. Pediatric type follicular lymphoma was first identified as a distinct variant in 2008 in the world Health organization classification of hematopoietic and lymphoid tissue tumors. Clinical, morphological (cytological type 3A), Immunohistochemical (absence of bcl2 expression in the center of the follicle) and cytogenetic (absence of t(14;18)(q32;q21)) features served as the reason for separation into an independent nosological variant. Despite the term “pediatric”, cases of pediatric type FL have been described in adults over 30 years of age. Most often, the disease is diagnosed in the early stages (I, II) and is characterized by a favorable prognosis. In children and adolescents, FL occurs not only of the pediatric type. we present a clinical case of a typical “adult” type FL (grade 1–2) in a 17-year-old patient. the cHop therapy (cyclophosphamide, doxorubicin, vincristine, and prednisolone) with rituximab resulted in a complete remission, which lasted more than 2.5 years.</p></abstract><trans-abstract xml:lang="ru"><p>   Фолликулярная лимфома (ФЛ) – один из самых часто встречающихся вариантов неходжкинских лимфом у взрослых, тогда как у подростков и детей это заболевание является диагнозом исключения. клинические проявления ФЛ у детей представлены длительной бессимптомной лимфаденопатией, реже – поражением экстранодальных зон. Стандарты лечения ФЛ у детей не разработаны и могут варьировать от наблюдательной тактики (при радикальном удалении единственного очага заболевания в ходе биопсии) до использования лучевой терапии и полихимиотерапии. Фолликулярная лимфома педиатрического типа была впервые выделена как отдельный вариант в 2008 г. в классификации опухолей кроветворной и лимфоидной тканей Всемирной организации здравоохранения. поводом для выделения в самостоятельный нозологический вариант послужили клинические, морфологические (цитологический тип 3А), иммуногистохимические (отсутствие экспрессии bcl2 в центре фолликула) и цитогенетические (отсутствие t(14;18)(q32;q21)) особенности. Несмотря на термин «педиатрический», были описаны случаи возникновения ФЛ педиатрического типа у взрослых старше 30 лет. Наиболее часто заболевание диагностируется на ранних стадиях (I, II) и характеризуется благоприятным прогнозом. У детей и подростков встречается ФЛ не только педиатрического типа. Мы приводим клиническое наблюдение типичной ФЛ «взрослого» типа (grade 1–2) у пациентки 17 лет. Проведенная терапия по схеме CHOP (циклофосфамид, доксорубицин, винкристин, преднизолон) с ритуксимабом привела к полной ремиссии, которая продолжается более 2,5 года.</p></trans-abstract><kwd-group xml:lang="en"><kwd>follicular lymphoma</kwd><kwd>pediatric type follicular lymphoma</kwd><kwd>oncology</kwd><kwd>hematology</kwd><kwd>diagnosis</kwd><kwd>treatment</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>фолликулярная лимфома</kwd><kwd>фолликулярная лимфома педиатрического типа</kwd><kwd>онкология</kwd><kwd>гематология</kwd><kwd>диагностика</kwd><kwd>лечение</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was performed without external funding</funding-statement><funding-statement xml:lang="ru">Работа выполнена без спонсорской поддержки</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Liu Q., Salaverria I., Pittaluga S. et al. 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