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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2021-1S-57-61</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-1650</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="en"><subject>CLINICAL OBSERVATONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКОЕ НАБЛЮДЕНИЕ</subject></subj-group></article-categories><title-group><article-title>Acute inflammatory demyelinating pseudotumor after COVID-19</article-title><trans-title-group xml:lang="ru"><trans-title>Острая псевдотуморозная воспалительная демиелинизация у пациентки, перенесшей COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якушина</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakushina</surname><given-names>T. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Игоревна Якушина</p><p>129110, Москва, ул. Щепкина, 61/2</p></bio><bio xml:lang="en"><p>Tatiana Igorevna Yakushina</p><p>61/2, Shchepkin St., Build. 1, Moscow 129110</p></bio><email xlink:type="simple">yakutanya@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якушин</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakushin</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>129110, Москва, ул. Щепкина, 61/2</p></bio><bio xml:lang="en"><p>61/2, Shchepkin St., Build. 1, Moscow 129110</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Штанг</surname><given-names>И. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Shtang</surname><given-names>I. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>129110, Москва, ул. Щепкина, 61/2</p></bio><bio xml:lang="en"><p>61/2, Shchepkin St., Build. 1, Moscow 129110</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ МО «Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.F. Vladimirsky Moscow Regional Research Clinical Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>16</day><month>09</month><year>2021</year></pub-date><volume>13</volume><issue>1S</issue><issue-title>Спецвыпуск: рассеянный склероз</issue-title><fpage>57</fpage><lpage>61</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Yakushina T.I., Yakushin D.M., Shtang I.O., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Якушина Т.И., Якушин Д.М., Штанг И.О.</copyright-holder><copyright-holder xml:lang="en">Yakushina T.I., Yakushin D.M., Shtang I.O.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nnp.ima-press.net/nnp/article/view/1650">https://nnp.ima-press.net/nnp/article/view/1650</self-uri><abstract><p>The presence of a single demyelinating focus with signs of the blood-brain barrier (BBB) disruption, revealed during magnetic resonance imaging (MRI), in the absence of clinical symptoms, is most often an accidental finding and requires careful follow-up and anamnesis clarification for diagnosis. Such a focus can be a sign of multiple sclerosis onset, be a symptom of acute disseminated encephalomyelitis, inflammatory demyelinating pseudotumor, brain tumor, encephalitis, etc. Difficulties of differential diagnosis in a radiologically isolated syndrome are reflected in the presented clinical case of a 26-year-old woman who had recovered from COVID-19, in whom an MRI revealed a large single focus in the left frontal lobe with signs of active process.</p></abstract><trans-abstract xml:lang="ru"><p>Наличие одиночного фокуса демиелинизации с признаками нарушения целостности гематоэнцефалического барьера (ГЭБ), выявленными при проведении магнитно-резонансной томографии (МРТ), при отсутствии клинической симптоматики чаще всего является случайной рентгенологической находкой и требует тщательного дообследования и уточнения анамнеза для постановки диагноза. Такой очаг может знаменовать дебют рассеянного склероза, быть проявлением острого рассеянного энцефаломиелита, острой воспалительной псевдотуморозной демиелинизации, опухоли головного мозга, энцефалита и т. д. Сложности дифференциальной диагностики при радиологически изолированном синдроме отражены в представленном клиническом случае пациентки 26 лет, переболевшей COVID-19, у которой при проведении МРТ выявлен крупный одиночный очаг в левой лобной доле с признаками активности процесса.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рассеянный склероз</kwd><kwd>острый рассеянный энцефаломиелит</kwd><kwd>псевдотуморозный очаг</kwd><kwd>опухоль центральной нервной системы</kwd><kwd>COVID-19</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiple sclerosis</kwd><kwd>acute disseminated encephalomyelitis</kwd><kwd>pseudotumor focus</kwd><kwd>central nervous system tumor</kwd><kwd>COVID-19</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">Бойко АН, Быков ОВ, Сиверцева СА. Рассеянный склероз у детей и подростков. Клиника, диагностика и лечение. Москва: МИА; 2016. 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