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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">16863</article-id><article-id pub-id-type="doi">10.25208/vdv16863</article-id><article-id pub-id-type="edn">kfoerx</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>GUIDELINES FOR PRACTITIONERS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>В ПОМОЩЬ ПРАКТИЧЕСКОМУ ВРАЧУ</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">Desmoplastic melanoma of the skin: current aspects of morphological and immunohistochemical diagnosis</article-title><trans-title-group xml:lang="ru"><trans-title>Десмопластическая меланома кожи: современные аспекты морфологической и иммуногистохимической диагностики</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-0930-5272</contrib-id><contrib-id contrib-id-type="spin">4064-6451</contrib-id><name-alternatives><name xml:lang="en"><surname>Makhachev</surname><given-names>Dalgat R.</given-names></name><name xml:lang="ru"><surname>Махачев</surname><given-names>Далгат Рамазанович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>Dalgat2002@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-3772-6643</contrib-id><contrib-id contrib-id-type="spin">2641-6658</contrib-id><name-alternatives><name xml:lang="en"><surname>Bulanov</surname><given-names>Dmitry V.</given-names></name><name xml:lang="ru"><surname>Буланов</surname><given-names>Дмитрий Владимирович</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>dbulanov81@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-1471-7005</contrib-id><name-alternatives><name xml:lang="en"><surname>Shikhsaidova</surname><given-names>Maryam U.</given-names></name><name xml:lang="ru"><surname>Шихсаидова</surname><given-names>Марьям Уллубиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mary6545566@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-1439-4201</contrib-id><name-alternatives><name xml:lang="en"><surname>Magomedova</surname><given-names>Madina N.</given-names></name><name xml:lang="ru"><surname>Магомедова</surname><given-names>Мадина Наримановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>madimagm6@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-0435-1039</contrib-id><name-alternatives><name xml:lang="en"><surname>Saipova</surname><given-names>Kheda A.</given-names></name><name xml:lang="ru"><surname>Саипова</surname><given-names>Хеда Аслановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>saipovak@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-9672-8133</contrib-id><name-alternatives><name xml:lang="en"><surname>Ibragimova</surname><given-names>Dinara I.</given-names></name><name xml:lang="ru"><surname>Ибрагимова</surname><given-names>Динара Ибрагимовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dinaaarush@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Pirogov Russian National Research Medical University (Pirogov University)</institution></aff><aff><institution xml:lang="ru">Российский национальный исследовательский медицинский университет имени Н.И. Пирогова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Dagestan State Medical University</institution></aff><aff><institution xml:lang="ru">Дагестанский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-07-10" publication-format="electronic"><day>10</day><month>07</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-08-04" publication-format="electronic"><day>04</day><month>08</month><year>2025</year></pub-date><volume>101</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>60</fpage><lpage>67</lpage><history><date date-type="received" iso-8601-date="2025-02-01"><day>01</day><month>02</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-06-25"><day>25</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Makhachev D.R., Bulanov D.V., Shikhsaidova M.U., Magomedova M.N., Saipova K.A., Ibragimova D.I.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Махачев Д.Р., Буланов Д.В., Шихсаидова М.У., Магомедова М.Н., Саипова Х.А., Ибрагимова Д.И.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Makhachev D.R., Bulanov D.V., Shikhsaidova M.U., Magomedova M.N., Saipova K.A., Ibragimova D.I.</copyright-holder><copyright-holder xml:lang="ru">Махачев Д.Р., Буланов Д.В., Шихсаидова М.У., Магомедова М.Н., Саипова Х.А., Ибрагимова Д.И.</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/16863">https://vestnikdv.ru/jour/article/view/16863</self-uri><abstract xml:lang="en"><p>To study the clinical, morphological, and immunohistochemical characteristics of desmoplastic melanoma and the use of modern diagnostic technologies to refine the classification criteria for this rare subtype of malignant neoplasms. The study included 5 patients (4 men and 1 woman, median age 62.5 years) diagnosed with malignant neoplasms of the skin on the back (3 cases) and the buccal area of the face (2 cases). Morphological and immunohistochemical studies were performed using markers S100 and Melan-A to confirm the diagnosis. Modern technologies were applied to improve diagnostic accuracy. Morphological analysis revealed the characteristic dense collagenized stroma and low cellular density of desmoplastic melanoma tumors. Immunohistochemical analysis confirmed the melanocytic origin of the tumors. The use of modern diagnostic methods allows us to determine diagnostic and classification criteria for desmoplastic melanoma. A comprehensive approach, including morphological and immunohistochemical methods with markers S100 and Melan-A, enhances diagnostic accuracy and refines the classification criteria for this disease.</p></abstract><trans-abstract xml:lang="ru"><p>В статье изложены результаты изучения клинических, морфологических и иммуногистохимических характеристик десмопластической меланомы, а также использования современных технологий диагностики для уточнения классификационных критериев данного редкого подтипа злокачественных новообразований. Обследованы 5 пациентов (4 мужчины и 1 женщина, медиана возраста — 60 лет), у которых диагностированы злокачественные новообразования кожи спины (3 случая) и щечной области лица (2 случая). Для уточнения диагноза проведены морфологическое и иммуногистохимическое исследования с использованием маркеров S100 и Melan-A. Применялись современные технологии для повышения точности диагностики. Морфологическое исследование выявило характерную для десмопластической меланомы плотную коллагенизированную строму и низкую клеточную плотность опухоли. Иммуногистохимический анализ подтвердил меланоцитарное происхождение опухолей. Использование современных диагностических методов дает возможность определять диагностические и классификационные критерии десмопластической меланомы. Комплексный подход, включающий морфологические и иммуногистохимические методы исследования, включая маркеры S100 и Melan-A, позволяет повысить точность диагностики и уточнить классификационные критерии данного заболевания.</p></trans-abstract><kwd-group xml:lang="en"><kwd>desmoplastic melanoma</kwd><kwd>case narrative</kwd><kwd>malignant skin tumors</kwd><kwd>immunohistochemistry</kwd><kwd>histopathology</kwd><kwd>S100 proteins</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>десмопластическая меланома</kwd><kwd>клинический случай</kwd><kwd>злокачественные новообразования кожи</kwd><kwd>иммуногистохимия</kwd><kwd>гистопатология</kwd><kwd>белки S100</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Gosman LM, ăpoi DA, Costache M. Cutaneous melanoma: a review of multifactorial pathogenesis, immunohistochemistry, and emerging biomarkers for early detection and management. 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