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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">uzspbgmu</journal-id><journal-title-group><journal-title xml:lang="ru">Учёные записки Первого Санкт-Петербургского государственного медицинского университета имени академика И. П. Павлова</journal-title><trans-title-group xml:lang="en"><trans-title>The Scientific Notes of the Pavlov University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-4181</issn><issn pub-type="epub">2541-8807</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1607-4181-2023-30-2-61-68</article-id><article-id custom-type="elpub" pub-id-type="custom">uzspbgmu-944</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="ru"><subject>НАБЛЮДЕНИЯ ИЗ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OBSERVATION FROM PRACTICE</subject></subj-group></article-categories><title-group><article-title>Гипомеланоз Ито: описание клинического случая</article-title><trans-title-group xml:lang="en"><trans-title>Hypomelanosis of Ito: description of the clinical case</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>Кошелева</surname><given-names>М. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosheleva</surname><given-names>M. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кошелева Мария Леонидовна, врач-детский невролог ПНО</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Kosheleva Mariya L., Pediatric Neurologist</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">mashakosheleva@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>Ефет</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Efet</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ефет Елена Анатольевна, кандидат медицинских наук, врач-детский невролог ПНО</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Efet Elena A., Cand. of Sci. (Med.), Pediatric Neurologist</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">e.efet@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>Лаптиев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Laptiev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лаптиев Сергей Александрович, кандидат биологических наук, врач-генетик педиатрического отделения амбулаторно-консультативного центра</p><p>194100, России, Санкт-Петербург, ул. Литовская, д. 2</p></bio><bio xml:lang="en"><p>Laptiev Sergey A., Cand. of Sci. (Biol.), Geneticist of the Pediatric Department of the Outpatient Advisory Center</p><p>2, Litovskaya str., Saint Petersburg, 194100</p></bio><email xlink:type="simple">s.laptiev@icloud.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный педиатрический медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State Pediatric Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>16</day><month>06</month><year>2023</year></pub-date><volume>30</volume><issue>2</issue><fpage>61</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кошелева М.Л., Ефет Е.А., Лаптиев С.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кошелева М.Л., Ефет Е.А., Лаптиев С.А.</copyright-holder><copyright-holder xml:lang="en">Kosheleva M.L., Efet E.A., Laptiev S.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://www.sci-notes.ru/jour/article/view/944">https://www.sci-notes.ru/jour/article/view/944</self-uri><abstract><p>Данная работа посвящена литературному обзору и описанию клинического случая гипомеланоза Ито. Учитывая редкую частоту встречаемости болезни, литературных данных на сегодняшний день накоплено не много. Описание заболевания может быть интересным по ряду причин. Гипомеланоз Ито является врожденным вариантом факоматоза, поражающим кожу и нервную систему. Заболевание носит спорадический характер. Диагноз большинства случаев выставляется клинически, что связано с отсутствием точно установленного молекулярного дефекта и, как следствие, «сложностями» в генетической диагностике. Этому свидетельствует отсутствие стандартного генетического анализа. Цитогенетические и молекулярно-генетические методы диагностики зачастую не устанавливают «причинную» мутацию.</p><p>Данное описание клинического случая болезни посвящено ребенку, наблюдавшемуся в отделении детской неврологии СПбГПМУ. Диагноз пациенту был установлен в раннем детском возрасте в соответствии с клиническими критериями, ведущими симптомами болезни были задержка психоречевого развития и эпилептические приступы. Семейный анамнез по нейрокожной патологии не отягощен. Учитывая разные подходы к генетической верификации синдрома, на отделении была проведена цитогенетическая диагностика как наиболее часто назначаемое исследование на сегодняшний день. По результатам исследований повреждений обнаружено не было. Учитывая тот факт, что сама по себе генетическая верификация не влияет на прогноз и тактику ведения больных, было принято решение не продолжать молекулярную диагностику. В настоящей работе описана тактика диагностики, лечения пациента, а также результаты медико-генетического консультирования семьи.</p></abstract><trans-abstract xml:lang="en"><p>This work is devoted to a literature review and description of a clinical case of Hypomelanosis of Ito. Considering the rare frequency of the disease, not much literature data has been accumulated to date. The description of the disease can be interesting for a number of reasons. Hypomelanosis of Ito is a congenital variant of phacomatosis affecting the skin and nervous system. The disease appears sporadic. The majority of cases are diagnosed clinically, which is due to the lack of a precisely established molecular defect and, as a result, the «difficulties» of molecular diagnostic. This is evidenced by the absence of standard genetic analysis. Cytogenetic and molecular genetic diagnostic methods often do not establish a «causal» mutation. This description of the clinical case of the disease is dedicated to the child who was observed in the Department of Pediatric Neurology of Saint-Petersburg State Pediatric Medical University. The patient was diagnosed clinically in early childhood; the leading symptoms of the disease were delayed speech development and epileptic seizures. No family history of neurocutaneous disorders was noted.</p><p>Given the different approaches to the genetic verification of the syndrome, some methods of cytogenetic diagnostics were performed at the department, as the most frequently prescribed study to date. According to the results of the studies, no damage was found. Given the fact that genetic verification itself does not affect the prognosis and management of patients, it was decided not to continue molecular diagnostics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>медицина</kwd><kwd>генетика</kwd><kwd>неврология</kwd><kwd>патофизиология</kwd></kwd-group><kwd-group xml:lang="en"><kwd>medicine</kwd><kwd>genetics</kwd><kwd>neurology</kwd><kwd>pathophysiology</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">Ito M. Studies on melanin IX. Incontinentia Pigmenti achromians. 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