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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">Vestnik dermatologii i venerologii</journal-id><journal-title-group><journal-title xml:lang="en">Vestnik dermatologii i venerologii</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник дерматологии и венерологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0042-4609</issn><issn publication-format="electronic">2313-6294</issn><publisher><publisher-name xml:lang="en">Rossijskoe Obschestvo Dermatovenerologov i Kosmetologov</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">16918</article-id><article-id pub-id-type="doi">10.25208/vdv16918</article-id><article-id pub-id-type="edn">xfolrh</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASE REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НАБЛЮДЕНИЕ ИЗ ПРАКТИКИ</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">Norwegian scabies in a patient with Down syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Норвежская чесотка у больного с синдромом Дауна</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6220-8304</contrib-id><contrib-id contrib-id-type="spin">6321-0197</contrib-id><name-alternatives><name xml:lang="en"><surname>Koshkin</surname><given-names>Sergei V.</given-names></name><name xml:lang="ru"><surname>Кошкин</surname><given-names>Сергей Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>koshkin_sergei@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-2755-4560</contrib-id><contrib-id contrib-id-type="spin">8530-6645</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhantlyu</surname><given-names>Regina N.</given-names></name><name xml:lang="ru"><surname>Жантлю</surname><given-names>Регина Николаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>regishazha@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-0231-5364</contrib-id><contrib-id contrib-id-type="spin">2067-6820</contrib-id><name-alternatives><name xml:lang="en"><surname>Kasatkina</surname><given-names>Mariya A.</given-names></name><name xml:lang="ru"><surname>Касаткина</surname><given-names>Мария Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mariakasatkina97@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-7114-5472</contrib-id><contrib-id contrib-id-type="spin">1283-1797</contrib-id><name-alternatives><name xml:lang="en"><surname>Sykchina</surname><given-names>Yulia Y.</given-names></name><name xml:lang="ru"><surname>Сыкчина</surname><given-names>Юлия Юрьевна</given-names></name></name-alternatives><email>yulia_yurievna_chulkova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6594-6652</contrib-id><contrib-id contrib-id-type="spin">5573-6747</contrib-id><name-alternatives><name xml:lang="en"><surname>Ryabova</surname><given-names>Vera V.</given-names></name><name xml:lang="ru"><surname>Рябова</surname><given-names>Вера Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand Sci. (Med.)</p></bio><bio xml:lang="ru"><p>к.м.н.</p></bio><email>ryabova.vv@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6680-283X</contrib-id><contrib-id contrib-id-type="spin">2409-6034</contrib-id><name-alternatives><name xml:lang="en"><surname>Evseeva</surname><given-names>Anna L.</given-names></name><name xml:lang="ru"><surname>Евсеева</surname><given-names>Анна Леонидовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>jls0105@icloud.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ryabov</surname><given-names>Nikolay Y.</given-names></name><name xml:lang="ru"><surname>Рябов</surname><given-names>Николай Юрьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ryabov210770@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kirov State Medical University</institution></aff><aff><institution xml:lang="ru">Кировский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kirov Regional Dermatology Hospital</institution></aff><aff><institution xml:lang="ru">Кировский областной клинический кожно-венерологический диспансер</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Belokholunitskaya Central District Hospital</institution></aff><aff><institution xml:lang="ru">Белохолуницкая центральная районная больница</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-11-26" publication-format="electronic"><day>26</day><month>11</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-12-13" publication-format="electronic"><day>13</day><month>12</month><year>2025</year></pub-date><volume>101</volume><issue>5</issue><issue-title xml:lang="en">Vestnik dermatologii i venerologii</issue-title><issue-title xml:lang="ru">Вестник дерматологии и венерологии</issue-title><fpage>100</fpage><lpage>106</lpage><history><date date-type="received" iso-8601-date="2025-07-10"><day>10</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-10-28"><day>28</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Koshkin S.V., Zhantlyu R.N., Kasatkina M.A., Sykchina Y.Y., Ryabova V.V., Evseeva A.L., Ryabov N.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Кошкин С.В., Жантлю Р.Н., Касаткина М.А., Сыкчина Ю.Ю., Рябова В.В., Евсеева А.Л., Рябов Н.Ю.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Koshkin S.V., Zhantlyu R.N., Kasatkina M.A., Sykchina Y.Y., Ryabova V.V., Evseeva A.L., Ryabov N.Y.</copyright-holder><copyright-holder xml:lang="ru">Кошкин С.В., Жантлю Р.Н., Касаткина М.А., Сыкчина Ю.Ю., Рябова В.В., Евсеева А.Л., Рябов Н.Ю.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://vestnikdv.ru/jour/article/view/16918">https://vestnikdv.ru/jour/article/view/16918</self-uri><abstract xml:lang="en"><p>The article describes a case report of Norwegian scabies in a 36-year-old patient with Down syndrome who lived in a psychiatric nursing home. The diagnosis was made by a dermatovenerologist during an annual periodic medical examination in 2009. There was a total (generalized) skin lesion in the form of erythroderma and massive scales on the forehead and scalp as well as on the distal parts of the upper and lower extremities. On the skin of the trunk and extremities, there were widespread papular elements, erosions, purulent and hemorrhagic crusts, and lichenification. Attention should be paid to the fact that typical scabies was detected a year earlier, which can often occur as in-hospital outbreaks in medical and preventive institutions of this type. The recurrence of the disease could have been caused by inadequate control of the therapy by the patient himself and those around him — other patients in the nursing institution — as well as by poor hygiene habits and specific characteristics of the immune defense of the skin in patients with Down syndrome (such as T- and B-cell lymphopenia, decrease in the specific antibody response to immunization, defects in neutrophil chemotaxis, excessive free radical oxidation of cell membrane lipids, genetically determined by trisomy 21).</p></abstract><trans-abstract xml:lang="ru"><p>В статье представлено описание клинического случая норвежской чесотки у пациента 36 лет с синдромом Дауна, проживающего в психоневрологическом интернате. Диагноз был установлен врачом-дерматовенерологом на ежегодном периодическом медицинском осмотре в 2009 г. Наблюдалось тотальное (генерализованное) поражение кожного покрова в виде эритродермии и массивных наслоений чешуек-корок в области лба и волосистой части головы, дистальных отделов верхних и нижних конечностей. На коже туловища и конечностей — распространенные папулезные элементы, эрозии, гнойно-геморрагические корки, явления лихенификации. Внимания заслуживает факт установленной годом ранее типичной чесотки, которая часто может наблюдаться в виде внутрибольничных вспышек в лечебно-профилактических учреждениях данного профиля. Рецидив заболевания мог наступить в результате неполноценного контроля терапии самого больного и его окружения — других пациентов интерната, а также быть обусловлен недостаточными гигиеническими навыками и особенностями иммунной защиты кожи у пациентов с синдромом Дауна (такими как Т- и В-клеточная лимфопения, снижение специфического ответа антител на иммунизацию, дефекты хемотаксиса нейтрофилов, избыточное свободнорадикальное окисление липидов клеточных мембран, генетически обусловленные трисомией 21).</p></trans-abstract><kwd-group xml:lang="en"><kwd>clinical case report</kwd><kwd>Norwegian scabies</kwd><kwd>hyperkeratotic layers</kwd><kwd>massive scale crusts</kwd><kwd>Down syndrome</kwd><kwd>immunological features of the skin</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>клинический случай</kwd><kwd>норвежская чесотка</kwd><kwd>гиперкератотические наслоения</kwd><kwd>массивные чешуйки-корки</kwd><kwd>синдром Дауна</kwd><kwd>иммунологические особенности кожи</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Соколова Т.В., Малярчук А.П., Ельцова Н.В., Хамицаева И.Р., Юрьева Е.О., Травкина И.А. 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