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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">Head and Neck Tumors</journal-id><journal-title-group><journal-title xml:lang="en">Head and Neck Tumors</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли головы и шеи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-1468</issn><issn publication-format="electronic">2411-4634</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">971</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2024-14-1-70-76</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Neoadjuvant therapy of juvenile angiofibroma of the nasopharynx and base of the skull with good clinical outcome (clinical case)</article-title><trans-title-group xml:lang="ru"><trans-title>Неоадъювантная терапия ювенильной ангиофибромы носоглотки и основания черепа с хорошим клиническим результатом (клинический случай)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3932-6257</contrib-id><name-alternatives><name xml:lang="en"><surname>Vorozhtsov</surname><given-names>I. N.</given-names></name><name xml:lang="ru"><surname>Ворожцов</surname><given-names>И. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Igor N. Vorozhtsov.</p><p>1 Samora Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>Ворожцов Игорь Николаевич.</p><p>117198 Москва, ул. Саморы Машела, 1</p></bio><email>dr.vorozhtsov@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4451-3233</contrib-id><name-alternatives><name xml:lang="en"><surname>Grachev</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Грачев</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samora Mashela St., Moscow 117198; 11 Volokolamskoye Shosse, Moscow 125080</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1; 125080 Москва, Волоколамское шоссе, 11</p></bio><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/0000-0002-2607-9795</contrib-id><name-alternatives><name xml:lang="en"><surname>Chechev</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Чечев</surname><given-names>Е. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samora Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1099-9332</contrib-id><name-alternatives><name xml:lang="en"><surname>Krasnov</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Краснов</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Samora Mashela St., Moscow 117198</p></bio><bio xml:lang="ru"><p>117198 Москва, ул. Саморы Машела, 1</p></bio><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</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="aff2"><aff><institution xml:lang="en">Medical Institute of Continuing Education of the Russian Biotechnological University</institution></aff><aff><institution xml:lang="ru">Медицинский институт непрерывного образования ФГБОУ ВО «Российский биотехнологический университет»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-06-28" publication-format="electronic"><day>28</day><month>06</month><year>2024</year></pub-date><volume>14</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>70</fpage><lpage>76</lpage><history><date date-type="received" iso-8601-date="2024-02-20"><day>20</day><month>02</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-06-28"><day>28</day><month>06</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Vorozhtsov I.N., Grachev N.S., Chechev E.I., Krasnov A.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Ворожцов И.Н., Грачев Н.С., Чечев Е.И., Краснов А.С.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Vorozhtsov I.N., Grachev N.S., Chechev E.I., Krasnov A.S.</copyright-holder><copyright-holder xml:lang="ru">Ворожцов И.Н., Грачев Н.С., Чечев Е.И., Краснов А.С.</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://ogsh.abvpress.ru/jour/article/view/971">https://ogsh.abvpress.ru/jour/article/view/971</self-uri><abstract xml:lang="en"><p>Juvenile nasopharyngeal angiofibroma is a benign, highly vascularized tumor that occurs mainly in children and young men of pubertal age 9-19 years old. Often manifested by difficulty in nasal breathing and nosebleeds. We report a 16-year-old boy with complaints of a complete absence of nasal breathing, nosebleeds, snoring, nasality, exophthalmos on the right side, visual impairment. undergoing therapeutic treatment for rhinosinusitis and adenoid vegetations for 5 months and an unsuccessful attempt at adenotomy in history. When contacting the Department of Oncology and Pediatric Surgery Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology according to imaging with contrast enhancement juvenile angiofibroma of the nasopharynx IVA stage to Fisch-Andrews with a 30 % increase in volume in 2 months. The patient was initiated on neoadjuvant therapy Sirolimus as part of a pilot phase of a prospective clinical trial. After 9 months of taking the drug, there is a reduction in the tumor by 37 %, restoration of vision, clinical and radiological improvement.</p></abstract><trans-abstract xml:lang="ru"><p>Ювенильная ангиофиброма носоглотки - доброкачественная высоковаскуляризированная опухоль, которая встречается чаще всего у детей и юношей 9-19 лет. Основными клиническими проявлениями данной патологии служат затруднение носового дыхания и носовое кровотечение.</p><p>В отделение онкологии и детской хирургии Национального медицинского исследовательского центра детской гематологии, онкологии и иммунологии им. Дмитрия Рогачева поступил 16-летний юноша с жалобами на полное отсутствие носового дыхания, носовые кровотечения, храп, гнусавость, экзофтальм справа, нарушение зрения. пациент проходил длительное (на протяжении 5 мес) терапевтическое лечение по поводу риносинусита и аденоидных вегетаций. В анамнезе - неудачная попытка аденотомии. по данным мультиспиральной компьютерной томографии головы с контрастным усилением - ювенильная ангиофиброма носоглотки IVa стадии (по классификации Fisch-Andrews). За 2 мес объем опухоли увеличился на 30 %. Пациенту проведена неоадъювантная терапия сиролимусом в рамках пилотной фазы проспективного клинического исследования. Через 9 мес приема препарата отмечаются сокращение объема опухоли на 37 %, восстановление зрения, улучшение клинико-рентгенологической картины.</p></trans-abstract><kwd-group xml:lang="en"><kwd>angiofibroma</kwd><kwd>nasopharynx</kwd><kwd>skull base</kwd><kwd>endoscopic endonasal approach</kwd><kwd>sirolimus</kwd><kwd>neoadjuvant therapy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ангиофиброма</kwd><kwd>носоглотка</kwd><kwd>основание черепа</kwd><kwd>эндоскопия</kwd><kwd>сиролимус</kwd><kwd>неоадъювантная терапия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chandler J.R., Moskowitz L., Goulding R., Quencer R.M. Nasopharyngeal angiofibromas: staging and management. Ann Otol Rhinol Laryngol 1984;93(4 Pt. 1):322-9. 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