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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">1386</article-id><article-id pub-id-type="doi">10.25208/vdv1386</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">Pyoderma gangrenosum mimicking granulomatosis with polyangiitis: case report and riview of the literature</article-title><trans-title-group xml:lang="ru"><trans-title>Гангренозная пиодермия, имитирующая гранулематоз с полиангиитом: клинический случай и обзор литературы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2482-1754</contrib-id><contrib-id contrib-id-type="spin">2500-7989</contrib-id><name-alternatives><name xml:lang="en"><surname>Olisova</surname><given-names>Olga Yu.</given-names></name><name xml:lang="ru"><surname>Олисова</surname><given-names>Ольга Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor, Corresponding Member of the Russian Academy of Sciences</p></bio><bio xml:lang="ru"><p>д.м.н., профессор, член-корреспондент РАН</p></bio><email>olisova_olga@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5800-4800</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><email>Teplyukn@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5259-7481</contrib-id><contrib-id contrib-id-type="spin">1843-1090</contrib-id><name-alternatives><name xml:lang="en"><surname>Grabovskaya</surname><given-names>Olga V.</given-names></name><name xml:lang="ru"><surname>Грабовская</surname><given-names>Ольга Валентиновна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>к.м.н., профессор</p></bio><email>olgadoctor2013@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5633-7986</contrib-id><contrib-id contrib-id-type="spin">1478-3503</contrib-id><name-alternatives><name xml:lang="en"><surname>Kusraeva</surname><given-names>Diana T.</given-names></name><name xml:lang="ru"><surname>Кусраева</surname><given-names>Диана Теймуразовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Postgraduate Student</p></bio><bio xml:lang="ru"><p>Аспирант</p></bio><email>kysra1992@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0301-737X</contrib-id><contrib-id contrib-id-type="spin">4391-9553</contrib-id><name-alternatives><name xml:lang="en"><surname>Kayumova</surname><given-names>Lyailya N.</given-names></name><name xml:lang="ru"><surname>Каюмова</surname><given-names>Ляиля Наилевна</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>avestohka2005@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3611-0917</contrib-id><name-alternatives><name xml:lang="en"><surname>Bobkova</surname><given-names>Anna E.</given-names></name><name xml:lang="ru"><surname>Бобкова</surname><given-names>Анна Евгеньевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Clinical Resident</p></bio><bio xml:lang="ru"><p>Ординатор</p></bio><email>anya_bobkova98@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5855-3092</contrib-id><name-alternatives><name xml:lang="en"><surname>Varshavsky</surname><given-names>Vladimir A.</given-names></name><name xml:lang="ru"><surname>Варшавский</surname><given-names>Владимир Анатольевич</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>vavarsh@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7855-8480</contrib-id><name-alternatives><name xml:lang="en"><surname>Komleva</surname><given-names>Lyudmila F.</given-names></name><name xml:lang="ru"><surname>Комлева</surname><given-names>Людмила Фёдоровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dermatovenereologist</p></bio><bio xml:lang="ru"><p>врач-дерматовенеролог</p></bio><email>komlevalf@okvd-kaluga.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5296-5734</contrib-id><name-alternatives><name xml:lang="en"><surname>Petrenko</surname><given-names>Ekaterina V.</given-names></name><name xml:lang="ru"><surname>Петренко</surname><given-names>Екатерина Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Dermatovenereologist</p></bio><bio xml:lang="ru"><p>к.м.н. врач-дерматовенеролог</p></bio><email>Petrenko.ev@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3645-0487</contrib-id><name-alternatives><name xml:lang="en"><surname>Bobrova</surname><given-names>Ksenia Yu.</given-names></name><name xml:lang="ru"><surname>Боброва</surname><given-names>Ксения Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dermatovenereologist</p></bio><bio xml:lang="ru"><p>врач-дерматовенеролог</p></bio><email>Bobrovaku@okvd-kaluga.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University (Sechenov University)</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет им. И. М. Сеченова (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kaluga Region Clinical Dermatovenereologic Dispensary</institution></aff><aff><institution xml:lang="ru">Калужский областной клинический кожно-венерологический диспансер</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2023-03-31" publication-format="electronic"><day>31</day><month>03</month><year>2023</year></pub-date><pub-date date-type="pub" iso-8601-date="2023-05-17" publication-format="electronic"><day>17</day><month>05</month><year>2023</year></pub-date><volume>99</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>70</fpage><lpage>79</lpage><history><date date-type="received" iso-8601-date="2022-10-15"><day>15</day><month>10</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2023-02-21"><day>21</day><month>02</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Olisova O.Y., Teplyuk N.P., Grabovskaya O.V., Kusraeva D.T., Kayumova L.N., Bobkova A.E., Varshavsky V.A., Komleva L.F., Petrenko E.V., Bobrova K.Y.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Олисова О.Ю., Теплюк Н.П., Грабовская О.В., Кусраева Д.Т., Каюмова Л.Н., Бобкова А.Е., Варшавский В.А., Комлева Л.Ф., Петренко Е.В., Боброва К.Ю.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Olisova O.Y., Teplyuk N.P., Grabovskaya O.V., Kusraeva D.T., Kayumova L.N., Bobkova A.E., Varshavsky V.A., Komleva L.F., Petrenko E.V., Bobrova K.Y.</copyright-holder><copyright-holder xml:lang="ru">Олисова О.Ю., Теплюк Н.П., Грабовская О.В., Кусраева Д.Т., Каюмова Л.Н., Бобкова А.Е., Варшавский В.А., Комлева Л.Ф., Петренко Е.В., Боброва К.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/1386">https://vestnikdv.ru/jour/article/view/1386</self-uri><abstract xml:lang="en"><p>Pyoderma gangrenosum is an autoinflammatory neutrophilic dermatosis. Diagnosis of the disease remains a difficult task to date, due to the lack of a standard of examination and differential diagnostic signs. The primary elements in the development of PG may be papules, pustules or bullae the dissection of which subsequently leads to the formation of ulcers with irregular, violaceous, undermined borders. In rare cases, the diagnosis of the disease can also be complicated by the rapid development of internal organs damage symptoms, which must be regarded as extracutaneous manifestations of PG. Extracutaneous lesions can occur before, during or after the appearance of skin rashes, and the detection of sterile neutrophil infiltrates in the defeat of internal organs confirm the concept of PG as a multisystemic disease. The presented case of a rare course of PG with multiple skin lesions and extracutaneous manifestations, simulating systemic vasculitis, emphasizes the importance of a detailed examination of patients in order to make a correct diagnosis and prescribe timely adequate treatment.</p> <p> </p></abstract><trans-abstract xml:lang="ru"><p>Гангренозная пиодермия (ГП) представляет собой аутовоспалительный нейтрофильный дерматоз. Диагностика заболевания до настоящего времени остается сложной задачей в связи с отсутствием стандарта обследования и дифференциально-диагностических признаков. Первичными элементами при развитии ГП могут быть папулы, пустулы или буллы, вскрытие которых впоследствии приводит к образованию язв с валикообразно приподнятыми краями багрово-синюшной окраски. В редких случаях диагностику заболевания также может усложнить быстрое развитие симптомов поражения внутренних органов, которые необходимо расценивать как внекожные проявления ГП. Внекожные поражения могут возникать как до, так и во время или после появления кожных высыпаний, а обнаружение стерильных нейтрофильных инфильтратов при морфологической диагностике подтверждает концепцию ГП как мультисистемного заболевания. Представленный случай редкого течения ГП с множественными поражениями кожи и внекожными проявлениями, имитирующий системный гранулематозный васкулит (гранулематоз с полиангиитом — гранулематоз Вегенера), подчеркивает важность подробного обследования пациентов с целью постановки правильного диагноза и назначения своевременного адекватного лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pyoderma gangrenosum</kwd><kwd>granulomatosis with polyangiitis</kwd><kwd>case report</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гангренозная пиодермия</kwd><kwd>гранулематоз с полиангиитом</kwd><kwd>клинический случай</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Chokoeva AA, Cardoso JC, Wollina U, Tchernev G. Pyoderma gangrenosum — a novel approach? 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