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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">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">20392</article-id><article-id pub-id-type="doi">10.17816/KMJ2020-107</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>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Abnormalities of brain development as a cause of epileptic seizures</article-title><trans-title-group xml:lang="ru"><trans-title>Аномалии развития головного мозга как причина эпилептических приступов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nabiev</surname><given-names>T M</given-names></name><name xml:lang="ru"><surname>Набиев</surname><given-names>Темраз Мадат оглы</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>melikova.shahla@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Melikova</surname><given-names>Sh Y</given-names></name><name xml:lang="ru"><surname>Меликова</surname><given-names>Шахла Якуб кызы</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>melikova.shahla@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Azerbaijan Medical University</institution></aff><aff><institution xml:lang="ru">Азербайджанский медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-02-11" publication-format="electronic"><day>11</day><month>02</month><year>2020</year></pub-date><volume>101</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>107</fpage><lpage>111</lpage><history><date date-type="received" iso-8601-date="2020-02-10"><day>10</day><month>02</month><year>2020</year></date><date date-type="accepted" iso-8601-date="2020-02-10"><day>10</day><month>02</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Nabiev T.M., Melikova S.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Набиев Т.М., Меликова Ш.Я.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Nabiev T.M., Melikova S.Y.</copyright-holder><copyright-holder xml:lang="ru">Набиев Т.М., Меликова Ш.Я.</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/">http://creativecommons.org/licenses/by-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/20392">https://kazanmedjournal.ru/kazanmedj/article/view/20392</self-uri><abstract xml:lang="en"><p>Brain abnormalities can cause resistant epileptic seizures and significant neurological deficits. In this article we present the clinical cases of cerebral hemiatrophy (Dyke–Davidoff–Masson syndrome) and polymicrogyria with a description of their classical clinical features and radiological and electrophysiological characteristics. The classical signs of Dyke–Davidoff–Masson syndrome in neuroimaging are cerebral hemiatrophy, calvarial thickening, and hyperpneumatization of the frontal sinuses. Polymycrogyria characterized by a gross defect of the cortex with multiple small superficial gyri can manifest as hemi- or tetraparesis, focal epilepsy, and developmental delay. Further study of brain abnormalities, obtaining high-quality images with neuroimaging and their careful analysis can help improve the efficiency of diagnosis and treatment of patients with this pathology.</p></abstract><trans-abstract xml:lang="ru"><p>Аномалии развития головного мозга могут быть причиной резистентных эпилептических приступов и грубого неврологического дефицита. В статье представлены клинические случаи церебральной гемиатрофии (синдром Дайка–Давидофф–Массона) и полимикрогирии с описанием их классических клинических особенностей и радиологических и электрофизиологических характеристик. Классические признаки синдрома Дайка–Давидофф–Массона при нейровизуализации — гемиатрофия головного мозга, утолщение свода черепа и гиперпневматизация лобных пазух. Полимикрогирия, характеризующаяся грубым дефектом коры головного мозга с множеством мелких неглубоких извилин, может проявляться геми- или тетрапарезом, фокальной эпилепсией, а также задержкой развития. Дальнейшее изучение аномалий головного мозга, получение высококачественных изображений при нейровизуализации и их тщательный анализ могут способствовать повышению эффективности диагностики и лечения пациентов с данной патологией.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cerebral hemiatrophy</kwd><kwd>epileptic seizures</kwd><kwd>polymicrogyria</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>церебральная гемиатрофия</kwd><kwd>эпилептические приступы</kwd><kwd>полимикрогирия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Shevchenko A.A. ­Congenital malformations of the cetral nervous system (CNS):clinical and neurological aspects and problems of prenatal diagnostics. Mezhdunarodnye obzory: klinicheskaya praktika i zdorovʹe. 2014; (2): 34–53. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Шевченко А.А. 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