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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Annals of Clinical and Experimental Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Annals of Clinical and Experimental Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Анналы клинической и экспериментальной неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-5473</issn><issn publication-format="electronic">2409-2533</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1164</article-id><article-id pub-id-type="doi">10.17816/ACEN.1164</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Clinical and Neuroimaging Patterns of Ischemic Stroke in Ph-negative Myeloproliferative Neoplasms</article-title><trans-title-group xml:lang="ru"><trans-title>Клинико-нейровизуализационные паттерны нарушений мозгового кровообращения на фоне гематологической патологии (Ph-негативных миелопролиферативных новообразований)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5883-8119</contrib-id><name-alternatives><name xml:lang="en"><surname>Tanashyan</surname><given-names>Мarine М.</given-names></name><name xml:lang="ru"><surname>Танашян</surname><given-names>Маринэ Мовсесовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.), Professor, Corr. Member of the Russian Academy of Sciences, Deputy Director of science, Head, 1<sup>st</sup> Neurological department, Institute of Clinical and Preventive Neurology</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор, член-корр. РАН, зам. директора по научной работе, зав. 1-м неврологическим отделением Института клинической и профилактической неврологии </p></bio><email>mtanashyan@neurology.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4626-6520</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuznetsova</surname><given-names>Polina I.</given-names></name><name xml:lang="ru"><surname>Кузнецова</surname><given-names>Полина Игоревна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), researcher associate, 1<sup>st</sup> Neurological department, Institute of Clinical and Preventive Neurologyt</p></bio><bio xml:lang="ru"><p>канд. мед. наук, н. с. 1-го неврологического отделения Института клинической и профилактической неврологии</p></bio><email>angioneurology0@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0522-767X</contrib-id><name-alternatives><name xml:lang="en"><surname>Raskurazhev</surname><given-names>Anton A.</given-names></name><name xml:lang="ru"><surname>Раскуражев</surname><given-names>Антон Алексеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), senior researcher associate, 1<sup>st</sup> Neurological department, Institute of Clinical and Preventive Neurology</p></bio><bio xml:lang="ru"><p>канд. мед. наук, c. н. с. 1-го неврологического отделения Института клинической и профилактической неврологии </p></bio><email>rasckey@live.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2119-3775</contrib-id><name-alternatives><name xml:lang="en"><surname>Melikyan</surname><given-names>Anait L.</given-names></name><name xml:lang="ru"><surname>Меликян</surname><given-names>Анаит Левоновна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.), Head, Department of standardization of treatment methods</p></bio><bio xml:lang="ru"><p>д-р мед. наук, зав. отделением стандартизации методов лечения НМИЦ гематологии</p></bio><email>anoblood@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9045-8653</contrib-id><name-alternatives><name xml:lang="en"><surname>Subortseva</surname><given-names>Irina N.</given-names></name><name xml:lang="ru"><surname>Суборцева</surname><given-names>Ирина Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), senior research associate, Department of diagnosis and treatment of hematological diseases</p></bio><bio xml:lang="ru"><p>канд. мед. наук, врач-гематолог отделения стандартизации методов лечения гематологических заболеваний, с. н. с. отдела диагностики и лечения гематологических заболеваний </p></bio><email>soubortseva@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9604-7775</contrib-id><name-alternatives><name xml:lang="en"><surname>Shabalina</surname><given-names>Аlla A.</given-names></name><name xml:lang="ru"><surname>Шабалина</surname><given-names>Алла Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.), senior research associate, Head, Laboratory diagnostics department</p></bio><bio xml:lang="ru"><p>д-р мед. наук, в. н. с., руководитель отдела лабораторной диагностики </p></bio><email>ashabalina@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9093-344X</contrib-id><name-alternatives><name xml:lang="en"><surname>Morozova</surname><given-names>Sofia N.</given-names></name><name xml:lang="ru"><surname>Морозова</surname><given-names>Софья Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), researcher associate, Neuroradiology</p></bio><bio xml:lang="ru"><p>канд. мед. наук, н. с. отдела лучевой диагностики Института клинической и профилактической неврологии </p></bio><email>morozova@neurology.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Center of Neurology</institution></aff><aff><institution xml:lang="ru">Научный центр неврологии</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">National Research Center for Hematology</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр гематологии</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-10-03" publication-format="electronic"><day>03</day><month>10</month><year>2024</year></pub-date><volume>18</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>14</fpage><lpage>25</lpage><history><date date-type="received" iso-8601-date="2024-07-09"><day>09</day><month>07</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-08-01"><day>01</day><month>08</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Tanashyan М.М., Kuznetsova P.I., Raskurazhev A.A., Melikyan A.L., Subortseva I.N., Shabalina А.A., Morozova S.N.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Танашян М.М., Кузнецова П.И., Раскуражев А.А., Меликян А.Л., Суборцева И.Н., Шабалина А.А., Морозова С.Н.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Tanashyan М.М., Kuznetsova P.I., Raskurazhev A.A., Melikyan A.L., Subortseva I.N., Shabalina А.A., Morozova S.N.</copyright-holder><copyright-holder xml:lang="ru">Танашян М.М., Кузнецова П.И., Раскуражев А.А., Меликян А.Л., Суборцева И.Н., Шабалина А.А., Морозова С.Н.</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://annaly-nevrologii.com/pathID/article/view/1164">https://annaly-nevrologii.com/pathID/article/view/1164</self-uri><abstract xml:lang="en"><p><bold>Introduction. </bold>Philadelphia-negative myeloproliferative neoplasms (MPNs) are a rare blood disorder characterized by pancytosis and thrombohemorrhagic complications.</p> <p>The <bold>aim</bold> of this article is to describe clinical and neuroimaging patterns of brain changes in patients with MPN.</p> <p><bold>Materials and methods. </bold>The study included 152 patients with an established diagnosis of MPN (according to WHO criteria 2008, 2016). A clinical and neurological examination, laboratory tests, and magnetic resonance imaging of the brain were performed.</p> <p><bold>Results. </bold>In patients with polycythemia vera and primary myelofibrosis, neuroimaging patterns are represented by small (up to 1.5 cm) post-infarction lesions in the brainstem, cerebellum, and cortex in adjacent perfusion territories after hemorheological microocclusive stroke. In patients with essential thrombocythemia, the neuroimaging pattern is more often represented by massive post-infarction changes in cortical-subcortical brain tissue with atherosclerotic lesions of the major head arteries, which appear to be atherothrombotic. Stroke preceded hematologic diagnosis in 30% of polycythemia vera cases, 40% of essential thrombocythemia cases, and 25% of primary myelofibrosis cases.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение. </bold>Ph-негативные миелопролиферативные новообразования (МПН) — редкая патология крови, характеризующаяся панцитозом и тромбогеморрагическими осложнениями.</p> <p><bold>Цель</bold> статьи — описание клинико-нейровизуализационных паттернов изменений вещества мозга у пациентов с МПН.</p> <p><bold>Материалы и методы.</bold> В исследование были включены 152 пациента с установленным диагнозом МПН (согласно критериям ВОЗ 2008, 2016 гг.). Проводились клинико-неврологический осмотр, лабораторное обследование, магнитно-резонансная томография головного мозга.</p> <p><bold>Результаты. </bold>У пациентов с истинной полицитемией и первичным миелофиброзом нейровизуализационные паттерны представлены небольшими (до 1,5 см) постинфарктными изменениями в стволе, мозжечке, области коры в зонах смежного кровоснабжения после нарушения мозгового кровообращения по типу гемореологической микроокклюзии. У пациентов с эссенциальной тромбоцитемией нейровизуализационная картина чаще представлена массивными постинфарктными изменениями вещества мозга корково-подкорковой локализации на фоне атеросклеротического поражения магистральных артерий головы, вероятно, по типу атеротромбоза. Инсульт предшествовал постановке гематологического диагноза в 30% случаев при истинной полицитемии, в 40% — при эссенциальной тромбоцитемии, в 25% — при первичном миелофиброзе.</p></trans-abstract><kwd-group xml:lang="en"><kwd>blood disorders</kwd><kwd>myeloproliferative neoplasms/diseases</kwd><kwd>thrombosis</kwd><kwd>stroke</kwd><kwd>magnetic resonance imaging of the brain</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>заболевания крови</kwd><kwd>миелопролиферативные новообразования/заболевания</kwd><kwd>тромбоз</kwd><kwd>инсульт</kwd><kwd>магнитно-резонансная томография головного мозга</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Shallis R.M., Zeidan A.M., Wang R., Podoltsev N.A. Epidemiology of the Philadelphia chromosome-negative classical myeloproliferative neoplasms. Hematol. Oncol. Clin. North Am. 2021;35(2):177–189. 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