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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">16991</article-id><article-id pub-id-type="doi">10.25208/vdv16991</article-id><article-id pub-id-type="edn">wevayw</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL STUDIES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НАУЧНЫЕ ИССЛЕДОВАНИЯ</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">Dermoscopic patterns of rare skin diseases (scleromyxedema, vegetating mycosis fungoides, ashy dermatosis, Darier disease)</article-title><trans-title-group xml:lang="ru"><trans-title>Дерматоскопические признаки редких заболеваний кожи (склеромикседемы, вегетативной формы грибовидного микоза, пепельного дерматоза, болезни Дарье)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3805-8489</contrib-id><contrib-id contrib-id-type="spin">3604-6491</contrib-id><name-alternatives><name xml:lang="en"><surname>Karamova</surname><given-names>Arfenya E.</given-names></name><name xml:lang="ru"><surname>Карамова</surname><given-names>Арфеня Эдуардовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Assistant Professor</p></bio><bio xml:lang="ru"><p>к.м.н., доцент</p></bio><email>karamova@cnikvi.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2924-3036</contrib-id><contrib-id contrib-id-type="spin">8310-7019</contrib-id><name-alternatives><name xml:lang="en"><surname>Aulova</surname><given-names>Kseniya M.</given-names></name><name xml:lang="ru"><surname>Аулова</surname><given-names>Ксения Максимовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>aulovaksenia@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">State Research Center of Dermatovenereology and Cosmetology</institution></aff><aff><institution xml:lang="ru">Государственный научный центр дерматовенерологии и косметологии</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-06-12" publication-format="electronic"><day>12</day><month>06</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-07-02" publication-format="electronic"><day>02</day><month>07</month><year>2026</year></pub-date><volume>102</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>60</fpage><lpage>68</lpage><history><date date-type="received" iso-8601-date="2026-04-15"><day>15</day><month>04</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-06-08"><day>08</day><month>06</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Karamova A.E., Aulova K.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Карамова А.Э., Аулова К.М.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Karamova A.E., Aulova K.M.</copyright-holder><copyright-holder xml:lang="ru">Карамова А.Э., Аулова К.М.</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/16991">https://vestnikdv.ru/jour/article/view/16991</self-uri><abstract xml:lang="en"><p><bold>Background: </bold>The dermoscopic characteristics of rare skin diseases have not been studied enough. However, the number of publications related to this topic is increasing every year, which highlights a growing interest among physicians in studying the dermoscopic patterns of patients with rare skin diseases.</p> <p><bold>Aim:</bold> To expand the available data on dermoscopic characteristics of rare skin diseases.</p> <p><bold>Methods:</bold> Researchers of the Dermatology Department at the FSBI “State Research Center of Dermatovenereology and Cosmetology of the Ministry of Health of the Russian Federation” conducted a dermoscopic examination of 4 patients with rare dermatological diseases using a HEINE DELTA 20 manual dermatoscope (HEINE Optotechnik, Germany, Registration Certificate РЗН 2014/2033).</p> <p><bold>Results:</bold> The dermoscopic patterns in 4 patients with rare skin diseases (scleromyxedema, vegetating mycosis fungoides, ashy dermatosis, and Darier disease) were described.</p> <p><bold>Conclusion: </bold>The limited data on dermoscopic patterns of rare skin diseases is related to the small number of patients. The gradual accumulation of knowledge will provide a foundation for future studies focused on searching for pathognomonic dermoscopic signs, which could improve the early diagnosis of rare skin diseases.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование. </bold>Дерматоскопические особенности редко встречающихся кожных болезней в настоящее время изучены недостаточно. Тем не менее число публикаций, посвященных данной теме, увеличивается с каждым годом, что отражает растущий интерес врачей к изучению дерматоскопической картины у больных редкими заболеваниями кожи.</p> <p><bold>Цель исследования.</bold> Расширение имеющихся данных о дерматоскопических признаках редко встречающихся кожных заболеваний.</p> <p><bold>Методы.</bold> На базе ФГБУ «Государственный научный центр дерматовенерологии и косметологии» Минздрава России сотрудниками отдела дерматологии проведено дерматоскопическое исследование с использованием ручного дерматоскопа HEINE DELTA 20 (HEINE Optotechnik, Германия, регистрационное удостоверение РЗН 2014/2033) у 4 больных редкими дерматологическими заболеваниями.</p> <p><bold>Результаты.</bold> Описана дерматоскопическая картина у 4 пациентов с редкими кожными заболеваниями (склеромикседемой, вегетативной формой грибовидного микоза, пепельным дерматозом и болезнью Дарье).</p> <p><bold>Заключение. </bold>Ограниченность имеющихся данных о дерматоскопических признаках редких заболеваний кожи обусловлена малым числом больных. Постепенное накопление знаний обеспечит формирование фундамента для будущих исследований, направленных на поиск патогномоничных дерматоскопических признаков, которые позволят улучшить раннюю диагностику редких кожных болезней.</p></trans-abstract><kwd-group xml:lang="en"><kwd>dermoscopy</kwd><kwd>rare diseases</kwd><kwd>dermatology</kwd><kwd>skin diseases</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дерматоскопия</kwd><kwd>редкие заболевания</kwd><kwd>дерматология</kwd><kwd>заболевания кожи</kwd></kwd-group><funding-group><funding-statement xml:lang="en">the manuscript was prepared and published as part of the fulfillment of the state task of State Research Center of Dermatovenereology and Cosmetology of the Ministry of Health of the Russian Federation No. 056-00013-26-00.</funding-statement><funding-statement xml:lang="ru">рукопись подготовлена и опубликована в рамках выполнения государственного задания ФГБУ «Государственный научный центр дерматовенерологии и косметологии» Минздрава России № 056-00013-26-00.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Mendes Bastos P, Borges AS, Cardoso JC, Oliveira A. 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