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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">Russian Journal of Child Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Child Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Русский журнал детской неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2073-8803</issn><issn publication-format="electronic">2412-9178</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">378</article-id><article-id pub-id-type="doi">10.17650/2073-8803-2021-16-3-69-74</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">Leukoencephalopathy with vanishing white matter caused by <italic>EIF2B5</italic> gene mutations: a case report</article-title><trans-title-group xml:lang="ru"><trans-title>Клинический случай лейкоэнцефалопатии с исчезающим белым веществом, обусловленной мутациями в гене <italic>EIF2B5</italic></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9552-8948</contrib-id><name-alternatives><name xml:lang="en"><surname>Saifullina</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Сайфуллина</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Elena V. Saifullina.3 Lenina St., Ufa, Republic of Bashkortostan 450008; 74 Gafuri St., Ufa, Republic of Bashkortostan 450076.</p></bio><bio xml:lang="ru"><p>Сайфуллина Елена Владимировна - кафедра неврологии.Республика Башкортостан, 450008 Уфа, ул. Ленина, 3; Республика Башкортостан, 450076 Уфа, ул. Гафури, 74.</p></bio><email>riledin@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gaysina</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Гайсина</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>74 Gafuri St., Ufa, Republic of Bashkortostan 450076.</p></bio><bio xml:lang="ru"><p>Республика Башкортостан, 450076 Уфа, ул. Гафури, 74.</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1246-4833</contrib-id><name-alternatives><name xml:lang="en"><surname>Magzhanov</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Магжанов</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>3 Lenina St., Ufa, Republic of Bashkortostan 450008.</p></bio><bio xml:lang="ru"><p>Кафедра неврологии.Республика Башкортостан, 450008 Уфа, ул. Ленина, 3.</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Yalaev</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Ялаев</surname><given-names>А. A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>3 Lenina St., Ufa, Republic of Bashkortostan 450008.</p></bio><bio xml:lang="ru"><p>Кафедра неврологии.Республика Башкортостан, 450008 Уфа, ул. Ленина, 3.</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9368-1594</contrib-id><name-alternatives><name xml:lang="en"><surname>Nagornov</surname><given-names>I. O.</given-names></name><name xml:lang="ru"><surname>Нагорнов</surname><given-names>И. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Moskvorechye St., Moscow 115522.</p></bio><bio xml:lang="ru"><p>115522 Москва, ул. Москворечье, 1.</p></bio><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Department of Neurology, Bashkir State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Башкирский государственный медицинский университет Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Republican Center for Medical Genetics</institution></aff><aff><institution xml:lang="ru">Республиканский медико-генетический центр</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">N.P. Bochkov Research Center for Medical Genetics</institution></aff><aff><institution xml:lang="ru">Медико-генетический научный центр им. акад. Н.П. Бочкова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-07-15" publication-format="electronic"><day>15</day><month>07</month><year>2021</year></pub-date><volume>16</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>69</fpage><lpage>74</lpage><history><date date-type="received" iso-8601-date="2021-11-04"><day>04</day><month>11</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-11-04"><day>04</day><month>11</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, АБВ-пресс</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</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://rjdn.abvpress.ru/jour/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://rjdn.abvpress.ru/jour/article/view/378">https://rjdn.abvpress.ru/jour/article/view/378</self-uri><abstract xml:lang="en"><p>Leukoencephalopathy with vanishing white matter (VWM disease) is a progressive neurodegenerative disease with a specific magnetic resonance pattern characterized by diffuse lesions to the white matter and cystic degeneration. In this article, we report a case VWM disease in a boy with white matter lesions, in whom early onset and neurological symptoms suggested infantile form of the disease. The diagnosis was confirmed by the detection of biallelic mutations c.1688G&gt;A (p.Arg563Gln) and c.1309G&gt;A (p.Val437Met) in the <italic>EIF2B5</italic> gene. The c.1309G&gt;A mutation (p.Val437Met) was detected for the first time; it caused the development of severe disease.</p></abstract><trans-abstract xml:lang="ru"><p>Лейкоэнцефалопатия с исчезающим белым веществом - прогрессирующее нейродегенеративное заболевание, имеющее характерную магнитно-резонансную картину диффузного поражения белого вещества с кистозной дегенерацией. В данной статье приведены клинические данные мальчика с поражением белого вещества головного мозга, у которого возраст манифестации болезни и неврологическая симптоматика соответствовали инфантильной форме болезни. Диагноз заболевания у пробанда подтвержден наличием в гене EIF2B5 биаллельных мутаций c.1688G&gt;A (p.Arg563Gln) и c.1309G&gt;A (p.Val437Met). Мутация c.1309G&gt;A (p.Val437Met) в данном гене выявлена впервые, ее наличие привело к развитию тяжелой формы заболевания.</p></trans-abstract><kwd-group xml:lang="en"><kwd>leukoencephalopathy with vanishing white matter</kwd><kwd>infantile form</kwd><kwd><italic>EIF2B5</italic> gene mutations</kwd><kwd>magnetic resonance imaging of the brain</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>лейкоэнцефалопатия с исчезающим белым веществом</kwd><kwd>инфантильная форма</kwd><kwd>мутации гена <italic>EIF2B5</italic></kwd><kwd>магнитно-резонансная томография головного мозга</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Molecular diagnostics was performed as a part of the state task of the Ministry of Education and Science of the Russian Federation for N.P. Bochkov Research Center for Medical Genetics (topic 0517-2019-0008).</funding-statement><funding-statement xml:lang="ru">Молекулярно-генетическая диагностика выполнена в рамках государственного задания Минобрнауки России для ФГБНУ «Медико-генетический научный центр им. акад. Н.П. Бочкова» (тема 0517-2019-0008).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Rudenskaya G.E., Zakharova E.Yu. Adult-onset leukoencephalopathy with vanishing white matter. Annaly klinicheskoy i eksperimentalnoy nevrologii = Annals of clinical and experimental neurology 2016;10(2): 46-51. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Руденская Г.Е., Захарова Е.Ю. Поздняя лейкоэнцефалопатия с исчезающим белым веществом. 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