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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">perinatology</journal-id><journal-title-group><journal-title xml:lang="ru">Российский вестник перинатологии и педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1027-4065</issn><issn pub-type="epub">2500-2228</issn><publisher><publisher-name>Ltd. “The National Academy of Pediatric Science and Innovation”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21508/1027-4065-2025-70-1-64-69</article-id><article-id custom-type="elpub" pub-id-type="custom">perinatology-2141</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 СЛУЧАИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Синдром Нунан в сочетании с ювенильной ксантогранулемой у новорожденного</article-title><trans-title-group xml:lang="en"><trans-title>Noonan syndrome combined with juvenile xanthogranuloma in a newborn</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-8625-7199</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мущерова</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Mushcherova</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мущерова Диана Максимовна - студентка V курса педиатрического факультета</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8340-6329</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Севергина</surname><given-names>У. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Severgina</surname><given-names>U. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Севергина Ульяна Сергеевна - ординатор второго года кафедры госпитальной педиатрии им. академика В.А. Таболина</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-6314-1086</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хохлова</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Khokhlova</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хохлова Анастасия Павловна - студентка VI курса педиатрического факультета</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7305-9036</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саркисян</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sarkisyan</surname><given-names>H. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Саркисян Егине Альбертовна - к.м.н., доц. кафедры госпитальной педиатрии им. академика В.А. Таболина</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3018-4392</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черкасова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherkasova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черкасова Светлана Вячеславовна - к.м.н., доц. кафедры госпитальной педиатрии им. академика В.А. Таболина</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-1938-8346</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шабельникова</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Shabelnikova</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шабельникова Екатерина Игоревна - к.м.н., доц. кафедры госпитальной педиатрии им. академика В.А. Таболина; ст. науч. сотр. отдела острой и хронической патологии уха, горла и носа</p><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9567-6761</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шумилов</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shumilov</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шумилов Петр Валентинович - д.м.н., проф., зав. кафедрой госпитальной педиатрии им. академика В.А. Таболина педиатрического факультета</p><p>117513 Москва, ул. Островитянова д. 1</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России; ОСП «Научно-исследовательский клинический институт педиатрии и детской хирургии им. академика Ю.Е. Вельтищева» (Институт Вельтищева) ФГАОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University; Veltischev Research and Clinical Institute for Pediatrics of the Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>06</day><month>03</month><year>2025</year></pub-date><volume>70</volume><issue>1</issue><fpage>64</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ltd. “The National Academy of Pediatric Science and Innovation”, 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><copyright-holder xml:lang="en">Ltd. “The National Academy of Pediatric Science and Innovation”</copyright-holder><license xlink:href="https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ped-perinatology.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ped-perinatology.ru/jour/article/view/2141">https://www.ped-perinatology.ru/jour/article/view/2141</self-uri><abstract><p>РАСопатии представляют одну из крупнейших групп генетических нарушений. Ее представитель — синдром Нунан — наследуемое по аутосомно-доминантному, а в редких случаях по аутосомно-рецессивному типу заболевание, обусловленное нарушением сигнального пути RAS/MAPK. Эта патология встречается у 1 на 1000–2500 живорожденных и влечет за собой целый ряд нарушений: дисморфические черты лица, врожденные пороки сердца, лимфатические мальформации, нарушения гемостаза, аномалии грудной клетки, крипторхизм, задержку нервно-психического и физического развития. Развитие синдрома Нунан обусловлено мутациями в генах PTPN11 (примерно у 50% пациентов), SOS1, RAF1, RIT1, KRAS, NRAS, BRAF, LZTR1, SOS2 и др. Фенотипическая схожесть синдрома Нунан с другими РАСопатиями, а также хромосомными аномалиями, в частности с синдромом Тернера, наличие сопутствующей патологии неонатального периода и кожных образований приводит к возникновению трудностей в дифференциально-диагностическом поиске и, как следствие, при постановке диагноза. Осведомленность неонатологов и педиатров о клинической картине данного синдрома, а также возможных сопутствующих патологиях будет способствовать его ранней диагностике, правильной тактике ведения и повышению качества жизни пациента. В статье приводится описание редкого клинического случая ювенильной ксантогранулемы у ребенка с синдромом Нунан.</p></abstract><trans-abstract xml:lang="en"><p>RASopathies represent one of the largest groups of genetic disorders. One of them is Noonan syndrome, an autosomal dominant disease, which in rare cases can also be inherited in an autosomal recessive manner caused by a disruptions of the RAS/MAPK signaling pathway. This pathology occurs in 1 in 1000–2500 live births and leads to a number of disorders: dysmorphic facial features, congenital heart defects, lymphatic malformations, hemostatic disorders, chest abnormalities, cryptorchidism, delayed neuropsychological and physical development. The development of Noonan syndrome is caused by mutations in the genes PTPN11 (in about 50% of patients), SOS1, RAF1, RIT1, KRAS, NRAS, BRAF, LZTR1, SOS2, etc. The phenotypic similarity of Noonan syndrome to other RASopathies, as well as chromosomal abnormalities, in particular with Turner syndrome, the presence of concomitant pathology of the neonatal period and skin formations leads to difficulties in differential diagnostic search and, as a result, in diagnosis. Awareness of neonatologists and pediatricians about the clinical picture of this syndrome, as well as possible concomitant pathologies, will contribute to its early diagnosis, proper management strategies and improvement of the patient’s quality of life. This article describes a rare clinical case of juvenile xanthogranuloma in a child with Noonan syndrome.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>новорожденные</kwd><kwd>синдром Нунан</kwd><kwd>ген PTPN11</kwd><kwd>ювенильная ксантогранулема</kwd><kwd>РАСопатии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>newborns</kwd><kwd>Noonan syndrome</kwd><kwd>PTPN11 gene</kwd><kwd>juvenile xanthogranuloma</kwd><kwd>RASopathy</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">Hebron K.E., Hernandez E.R., Yohe M.E. The RASopathies: from pathogenetics to therapeutics. Dis Model Mech 2022; 15(2): dmm049107. DOI: 10.1242/dmm.049107</mixed-citation><mixed-citation xml:lang="en">Hebron K.E., Hernandez E.R., Yohe M.E. The RASopathies: from pathogenetics to therapeutics. Dis Model Mech 2022; 15(2): dmm049107. 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