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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">10.14412/2074-2711-2022-6-67-72</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-1923</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 OBSERVATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group></article-categories><title-group><article-title>Leptomeningeal amyloidosis: features of the clinical picture (clinical observation)</article-title><trans-title-group xml:lang="ru"><trans-title>Лептоменингеальный амилоидоз: особенности клинической картины (клиническое наблюдение)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1233-7626</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафиулина</surname><given-names>Э. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Safiulina</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эльвира Ирековна Сафиулина</p><p>119021, Москва, ул. Россолимо, 11, стр.1</p></bio><bio xml:lang="en"><p>Elvira Irekovna Safiulina</p><p>119021, Moscow, Rossolimo St., 11, Build. 1</p></bio><email xlink:type="simple">surovast@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5937-9463</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зиновьева</surname><given-names>О. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Zinovieva</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119021, Москва, ул. Россолимо, 11, стр.1</p></bio><bio xml:lang="en"><p>119021, Moscow, Rossolimo St., 11, Build. 1</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/0000-0002-5611-4950</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щеглова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shcheglova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119021, Москва, ул. Россолимо, 11, стр.1</p></bio><bio xml:lang="en"><p>119021, Moscow, Rossolimo St., 11, Build. 1</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/0000-0003-4260-0226</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рамеев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rameev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119021, Москва, ул. Россолимо, 11, стр. 4</p></bio><bio xml:lang="en"><p>119021, Moscow, Rossolimo St., 11, Build. 4</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5692-1800</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сурнина</surname><given-names>З. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Surnina</surname><given-names>Z. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119021, Москва, ул. Россолимо, 11А, Б</p></bio><bio xml:lang="en"><p>119021, Moscow, Rossolimo St., 11A, B</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4222-9914</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитина</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitina</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>344000, Ростов-на-Дону, ул. Пушкинская, 127</p></bio><bio xml:lang="en"><p>344000, Rostov-on-Don, Pushkin St., 127</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6946-6816</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воробьева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vorobieva</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>192071, Санкт-Петербург, проспект Славы, 32</p></bio><bio xml:lang="en"><p>192071, St. Petersburg, Slavy Prosp., 32</p></bio><xref ref-type="aff" rid="aff-6"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Клиника нервных болезней им. А.Я. Кожевникова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kozhevnikov Clinic of Nervous Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Кафедра нервных болезней и нейрохирургии Института клинической медицины им. Н.В. Склифосовского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Nervous System Diseases and Neurosurgery, N.V. Sklifosovsky Institute of Clinical Medicine</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Кафедра внутренних, профессиональных болезней и ревматологии ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова» Минздрава России (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Department of Internal Diseases, Professional Diseases and Rheumatology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБНУ «Научно-исследовательский институт глазных болезней им. М.М. Краснова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.M. Krasnov Research Institute of Eye Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>ГАУ РО «Областной консультативно-диагностический центр»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Consultative and Diagnostic Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>ООО «Национальный центр клинической морфологической диагностики»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Center for Clinical Morphological Diagnostics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>19</day><month>12</month><year>2022</year></pub-date><volume>14</volume><issue>6</issue><fpage>67</fpage><lpage>72</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Safiulina E.I., Zinovieva O.E., Shcheglova N.S., Rameev V.V., Surnina Z.V., Nikitina E.N., Vorobieva O.A., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Сафиулина Э.И., Зиновьева О.Е., Щеглова Н.С., Рамеев В.В., Сурнина З.В., Никитина Е.Н., Воробьева О.А.</copyright-holder><copyright-holder xml:lang="en">Safiulina E.I., Zinovieva O.E., Shcheglova N.S., Rameev V.V., Surnina Z.V., Nikitina E.N., Vorobieva O.A.</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/1923">https://nnp.ima-press.net/nnp/article/view/1923</self-uri><abstract><p>Hereditary transthyretin amyloidosis belongs to a group of diseases with an autosomal dominant type of transmission and a heterogeneous clinical picture, which depends on the type of transthyretin gene mutation. The leptomeningeal form is a rare phenotypic variant of amyloidosis with a predominant involvement of brain and spinal cord meninges, as well as cortical meningeal vessels. The main manifestations of this phenotype include cephalalgic syndrome, episodes of acute cerebrovascular accident, hearing impairment, epileptic seizures, progressive cognitive impairment reaching the degree of dementia, impaired consciousness, etc. The article describes a clinical case of revealing of amyloidogenic mutation Ala45Thr with a hereditary family history and typical manifestations of leptomeningeal amyloidosis at the onset of the disease, as well as impaired renal function. Neuroimaging with contrast enhancement revealed a characteristic thickening of the meninges of the spinal cord due to the deposition of amyloid masses.</p></abstract><trans-abstract xml:lang="ru"><p>Наследственный транстиретиновый амилоидоз относится к группе заболеваний с аутосомно-доминантным типом передачи и гетерогенной клинической картиной, которая зависит от вида мутации гена транстиретина. Лептоменингеальная форма является редким фенотипическим вариантом амилоидоза с преимущественным поражением оболочек головного и спинного мозга, а также кортикальных оболочечных сосудов. К основным проявлениям данного фенотипа относят цефалгический синдром, эпизоды острого нарушения мозгового кровообращения, нарушение слуха, эпилептические приступы, прогрессирующие когнитивные нарушения, достигающие степени деменции, нарушение сознания и др. В статье приведено описание клинического случая выявления амилоидогенной мутации Ala45Thr с наследственным семейным анамнезом и типичными проявлениями лептоменингеального амилоидоза в дебюте заболевания, а также нарушением функции почек. При нейровизуализации с контрастным усилением обнаружено характерное утолщение оболочек спинного мозга, обусловленное отложением амилоидных масс. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>лептоменингеальный амилоидоз</kwd><kwd>транстиретиновый наследственный амилоидоз</kwd><kwd>мутация гена транстиретина</kwd></kwd-group><kwd-group xml:lang="en"><kwd>leptomeningeal amyloidosis</kwd><kwd>transthyretin hereditary amyloidosis</kwd><kwd>mutation in the transthyretin gene</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">Сафиулина ЭИ, Зиновьева ОЕ, Рамеев ВВ и др. Поражение периферической нервной системы при системном амилоидозе. 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