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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="review-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">1216</article-id><article-id pub-id-type="doi">10.25208/vdv1216</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОБЗОР ЛИТЕРАТУРЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Revisiting the question of pemphigus classification</article-title><trans-title-group xml:lang="ru"><trans-title>К вопросу о классификации пузырчатки</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9458-0872</contrib-id><contrib-id contrib-id-type="spin">2287-5062</contrib-id><name-alternatives><name xml:lang="en"><surname>Samtsov</surname><given-names>Alexey V.</given-names></name><name xml:lang="ru"><surname>Самцов</surname><given-names>Алексей Викторович</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>avsamtsov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7610-6061</contrib-id><contrib-id contrib-id-type="spin">6807-7137</contrib-id><name-alternatives><name xml:lang="en"><surname>Sokolovskiy</surname><given-names>Evgeny V.</given-names></name><name xml:lang="ru"><surname>Соколовский</surname><given-names>Евгений Владиславович</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>s40@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5800-4800</contrib-id><contrib-id contrib-id-type="spin">8013-3256</contrib-id><name-alternatives><name xml:lang="en"><surname>Teplyuk</surname><given-names>Natalia P.</given-names></name><name xml:lang="ru"><surname>Теплюк</surname><given-names>Наталия Павловна</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>teplyukn@gmail.com</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4374-4435</contrib-id><contrib-id contrib-id-type="spin">6386-1117</contrib-id><name-alternatives><name xml:lang="en"><surname>Belousova</surname><given-names>Irena E.</given-names></name><name xml:lang="ru"><surname>Белоусова</surname><given-names>Ирена Эдуардовна</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>irena.belousova@mail.ru</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6353-6644</contrib-id><contrib-id contrib-id-type="spin">3470-9306</contrib-id><name-alternatives><name xml:lang="en"><surname>Kokhan</surname><given-names>Muza M.</given-names></name><name xml:lang="ru"><surname>Кохан</surname><given-names>Муза Михайловна</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>mkokhan@yandex.ru</email><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4583-0617</contrib-id><contrib-id contrib-id-type="spin">7430-2112</contrib-id><name-alternatives><name xml:lang="en"><surname>Matushevskaya</surname><given-names>Elena V.</given-names></name><name xml:lang="ru"><surname>Матушевская</surname><given-names>Елена Владиславовна</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>matushevskaya@mail.ru</email><xref ref-type="aff" rid="aff6"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">S.M. Kirov Military Medical Academy</institution></aff><aff><institution xml:lang="ru">Военно-медицинская академия им.С. М. Кирова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">First Pavlov State Medical University of Saint Petersburg</institution></aff><aff><institution xml:lang="ru">Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Sechenov University</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет им. И.М. Сеченова</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">S.M. Kirov Military Medical Academy</institution></aff><aff><institution xml:lang="ru">Военно-медицинская академия им. С.М. Кирова</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Ural Scientific Research Institute of Dermatovenerology and Immunopathology</institution></aff><aff><institution xml:lang="ru">Уральский научно-исследовательский институт дерматовенерологии и иммунопатологии</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Academy of postgraduate education under FSBU FSCC of FMBA of Russia</institution></aff><aff><institution xml:lang="ru">Академия постдипломного образования ФГБУ ФНКЦ ФМБА</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-04-28" publication-format="electronic"><day>28</day><month>04</month><year>2021</year></pub-date><volume>97</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>9</fpage><lpage>15</lpage><history><date date-type="received" iso-8601-date="2021-02-19"><day>19</day><month>02</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-03-02"><day>02</day><month>03</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Samtsov A.V., Sokolovskiy E.V., Teplyuk N.P., Belousova I.E., Kokhan M.M., Matushevskaya E.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Самцов А.В., Соколовский Е.В., Теплюк Н.П., Белоусова И.Э., Кохан М.М., Матушевская Е.В.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Samtsov A.V., Sokolovskiy E.V., Teplyuk N.P., Belousova I.E., Kokhan M.M., Matushevskaya E.V.</copyright-holder><copyright-holder xml:lang="ru">Самцов А.В., Соколовский Е.В., Теплюк Н.П., Белоусова И.Э., Кохан М.М., Матушевская Е.В.</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://vestnikdv.ru/jour/article/view/1216">https://vestnikdv.ru/jour/article/view/1216</self-uri><abstract xml:lang="en"><p>Analysis of various classifications of pemphigus shows that there are no fundamental differences between them. The main distinctions consist in use of diverse terms in naming of some forms of pemphigus and in inclusion or exclusion of certain subtypes from the classifications. Authors propose to use the following classification in the dermatological clinical practice, for educational and scientific purposes and for clinical guidelines: 1) pemphigus vulgaris (1.1. Pemphigu s vegetans); 2) pemphigus foliaceus (2.1. Pemphigus endemic (Fogo selvagem), 2.2. Pemphigus erythematosus (Senear — Usher)); 3) herpetiform pemphigus; 4) paraneoplastic pemphigus; 5) IgA pemphigus (5.1. Subcorneal pustular dermatosis, 5.2. Intraepidermal neutrophilic dermatosis).</p></abstract><trans-abstract xml:lang="ru"><p>Анализ различных классификаций пузырчатки показывает, что принципиальных различий между ними нет, основные отличия связаны с использованием различной терминологии в обозначении некоторых форм пузырчатки, наличием или отсутствием тех или иных подтипов в классификациях. Авторы предлагают использовать в клинической работе врачей дерматовенерологов, в учебных и научных целях, при разработке клинических рекомендаций следующую классификацию пузырчатки: 1) вульгарная пузырчатка (1.1. Вегетирующая пузырчатка); 2) листовидная пузырчатка (2.1. Эндемичная пузырчатка (Fogo selvagem), 2.2. Эритематозная пузырчатка (Senear — Usher)); 3) герпетиформная пузырчатка; 4) паранеопластическая пузырчатка; 5) IgA-пузырчатка (5.1. Субкорнеальный пустулезный дерматоз, 5.2. Внутриэпидермальный нейтрофильный дерматоз).</p></trans-abstract><kwd-group xml:lang="en"><kwd>pemphigus</kwd><kwd>classification</kwd><kwd>pathophysiology</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пузырчатка</kwd><kwd>классификация</kwd><kwd>патофизиология</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The work was done and published through financing at the place of work of the authors</funding-statement><funding-statement xml:lang="ru">Работа выполнена и опубликована за счет финансирования по месту работы авторов</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Joly P, Horvath B, Patsatsi A, et al. Updated S2K guidelines on the management of pemphigus vulgaris and foliaceus initiated by the european academy of dermatology and venereology (EADV). 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