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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">Russian Journal of Skin and Venereal Diseases</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Skin and Venereal Diseases</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский журнал кожных и венерических болезней</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1560-9588</issn><issn publication-format="electronic">2412-9097</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">699575</article-id><article-id pub-id-type="doi">10.17816/dv699575</article-id><article-id pub-id-type="edn">AFURDB</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DERMATOONCOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДЕРМАТООНКОЛОГИЯ</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">Clinical, epidemiological, and diagnostic aspects of erythroplasia of queyrat</article-title><trans-title-group xml:lang="ru"><trans-title>Клинико-эпидемиологические и диагностические аспекты эритроплазии Кейра</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1671-461X</contrib-id><contrib-id contrib-id-type="spin">3577-7335</contrib-id><name-alternatives><name xml:lang="en"><surname>Dubenskiy</surname><given-names>Valeriy V.</given-names></name><name xml:lang="ru"><surname>Дубенский</surname><given-names>Валерий Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><email>valerydubensky@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5326-4876</contrib-id><contrib-id contrib-id-type="spin">3332-8424</contrib-id><name-alternatives><name xml:lang="en"><surname>Muraveva</surname><given-names>Ekaterina S.</given-names></name><name xml:lang="ru"><surname>Муравьева</surname><given-names>Екатерина Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>katerisha87@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5583-928X</contrib-id><contrib-id contrib-id-type="spin">6044-8507</contrib-id><name-alternatives><name xml:lang="en"><surname>Dubensky</surname><given-names>Vladislav V.</given-names></name><name xml:lang="ru"><surname>Дубенский</surname><given-names>Владислав Валерьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine), Assistant Professor</p></bio><bio xml:lang="ru"><p>канд. мед. наук, доцент</p></bio><email>dubensky.vladislav@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Tver State Medical University</institution></aff><aff><institution xml:lang="ru">Тверской государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-04-06" publication-format="electronic"><day>06</day><month>04</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-05-17" publication-format="electronic"><day>17</day><month>05</month><year>2026</year></pub-date><volume>29</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>127</fpage><lpage>137</lpage><history><date date-type="received" iso-8601-date="2025-12-26"><day>26</day><month>12</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-02-04"><day>04</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2029-05-17"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://eco-vector.com/for_authors.php#07</ali:license_ref></license></permissions><self-uri xlink:href="https://rjsvd.com/1560-9588/article/view/699575">https://rjsvd.com/1560-9588/article/view/699575</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> Erythroplasia of Queyrat (ICD-10 code: D07.4) is an intraepithelial neoplasia affecting the glans penis and inner preputial leaf. It is classified as a squamous cell carcinoma in situ. However, available publications lack data on its prevalence across age groups.</p> <p><bold>AIM:</bold> The work aimed to examine the clinical and epidemiological aspects of erythroplasia of Queyrat and assess the efficacy of various diagnostic approaches.</p> <p><bold>METHODS:</bold> A retrospective, cross-sectional case history study in patients who sought medical advice for penile lesions of various origins (<italic>n</italic> = 327) and a prospective observational study in patients with erythroplasia of Queyrat (<italic>n</italic> = 49) were conducted. Toluidine blue staining, dermatoscopy, and cytological and histological examinations were used in the diagnosis of erythroplasia of Queyrat. Additionally, an ultrasound of the penis and inguinal lymph nodes, tests for sexually transmitted infections, and a transrectal prostate ultrasound were performed.</p> <p><bold>RESULTS:</bold> The observational study in patients with erythroplasia of Queyrat revealed a trend towards younger onset. The majority of patients (30.61%) were aged 50–59 years, with the disease detected before the age of 29 in 12.24% of cases and at the age of 30–39 in 20.4% of cases. A total of 89.8% of patients saw physicians of various specialties (urologists, dermatovenerologists, oncologists, etc.), whereas 10.2% self-medicated. The time between the onset of penile rashes and seeking medical advice is particularly concerning, ranging from 1 week (4.0%) to more than 5 years (2.0%). Thus, patients with a disease duration of ≥ 1 year (12.1%) are at the highest risk of penile squamous cell carcinoma. The majority of patients with erythroplasia of Queyrat consult with a dermatovenerologist, with the final diagnosis made on the initial or follow-up visit in 93.87% of cases, indicating that dermatovenerologists are familiar with clinical signs and diagnostic approaches in this condition.</p> <p><bold>CONCLUSION:</bold> This work addresses the gaps in the modern assessment of clinical and epidemiological aspects and diagnostic efficacy in patients with erythroplasia of Queyrat, facilitating the selection of effective therapeutic options.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Эритроплазия Кейра (D07.4 по МКБ) ― онкологическое заболевание кожи головки полового члена и внутреннего листка крайней плоти; относится к плоскоклеточному раку <italic>in situ</italic>, однако в современной литературе отсутствуют данные о распространённости данного заболевания в различных возрастных группах.</p> <p><bold>Цель исследования</bold> ― изучить клинико-эпидемиологические аспекты эритроплазии Кейра и оценить эффективность различных методов диагностики.</p> <p><bold>Методы.</bold> Проведено ретроспективное поперечное исследование историй болезни пациентов с поражением пенильной области различного генеза, самостоятельно обратившихся за медицинской помощью (<italic>n</italic> = 327), а также проспективное наблюдательное исследование контингента больных эритроплазией Кейра (<italic>n</italic> = 49). В диагностике эритроплазии Кейра использовали окраску толуидиновым синим; дерматоскопию; цитологическое, гистологическое, дополнительно ― ультразвуковое исследование полового члена и паховых лимфоузлов; обследование на инфекции, передающиеся половым путём; трансректальное ультразвуковое исследование предстательной железы.</p> <p><bold>Результаты. </bold>Наблюдение за пациентами с эритроплазией Кейра установило явное омоложение заболевания: наибольшая доля по-прежнему приходится на возраст 50–59 лет (30,61%), при этом в возрасте до 29 лет заболевание диагностируется в 12,24% случаев, в возрасте 30–39 лет ― в 20,4%. К врачам различных специальностей (урологу, дерматовенерологу, онкологу и др.) обратились 89,8% больных, занимались самолечением ― 10,2%. Сроки обращения больных к специалистам после пенильных высыпаний также настораживают ― от 1 недели (4,0%) до &gt; 5 лет (2,0%). Таким образом, больные с давностью заболевания ≥ 1 года (12,1%) могут рассматриваться пациентами с наибольшим риском развития плоскоклеточного рака полового члена. Большинство больных эритроплазией Кейра обращаются именно к дерматовенерологам: окончательный диагноз установлен ими при первичном или повторном посещении в 93,87% случаев, что демонстрирует знание клинической картины и методов диагностики этими специалистами.</p> <p><bold>Заключение.</bold> Нами восполнен пробел в современной оценке клинико-эпидемиологических аспектов и эффективности диагностических методов у больных эритроплазией Кейра, что будет способствовать выбору эффективных методов лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>erythroplasia of Queyrat</kwd><kwd>dermatoscopy</kwd><kwd>toluidine blue</kwd><kwd>cytological and histological examination</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эритроплазия Кейра</kwd><kwd>дерматоскопия</kwd><kwd>толуидиновый синий</kwd><kwd>цитологическое и гистологическое исследование</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Krasnoselskikh TV, Araviyskaya ER, Sokolovsky EV, Monakhov KN. 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