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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vclsl</journal-id><journal-title-group><journal-title xml:lang="ru">Ветеринарные клинические случаи</journal-title><trans-title-group xml:lang="en"><trans-title>Veterinary Clinical Cases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0000-0000</issn><issn pub-type="epub">0000-0000</issn><publisher><publisher-name>https://donstu.ru/</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vclsl-5</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ВЕТЕРИНАРНАЯ ДЕРМАТОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>VETERINARY DERMATOLOGY</subject></subj-group></article-categories><title-group><article-title>Дискоидная красная волчанка у собаки</article-title><trans-title-group xml:lang="en"><trans-title>Discoid Lupus Erythematosus in a Dog</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кочеткова</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kochetkova</surname><given-names>A. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анастасия Юрьевна Кочеткова, кандидат биологических наук, доцент кафедры «Биология и общая патология»</p><p>344003, г. Ростов-на-Дону, пл. Гагарина, 1</p></bio><bio xml:lang="en"><p>Anastasia Y Kochetkova, candidate of biological sciences, associate professor at the department of “Biology and General Pathology”</p><p>1, Gagarin Sq., Rostov–on–Don, 344003</p></bio><email xlink:type="simple">lastik61@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>05</day><month>09</month><year>2026</year></pub-date><volume>1</volume><issue>1</issue><fpage>26</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кочеткова А.Ю., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Кочеткова А.Ю.</copyright-holder><copyright-holder xml:lang="en">Kochetkova A.Y.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vetclincases.ru/jour/article/view/5">https://www.vetclincases.ru/jour/article/view/5</self-uri><abstract><sec><title>Введение</title><p>Введение. Аутоиммунные дерматозы у собак составляют лишь 2–3 % от общего числа патологий кожи и шерстного покрова в практике ветеринарного дерматолога. Дискоидная красная волчанка (ДКВ) хроническое заболевание аутоиммунной этиологии. Впервые данная патология была описана у собак в 1965 году, а в 1970 х годах были выделены и зарегистрированы кожные формы заболевания, связанные с развитием хронического дерматита после длительной инсоляции. Поражения при ДКВ могут ограничиваться областью морды; такую форму обозначают как лицевую дискоидную красную волчанку (ЛДКВ). В других случаях очаги поражения могут локализоваться на различных участках тела, что соответствует генерализованной форме ДКВ. Для заболевания характерны определенные гистопатологические признаки, при этом микроскопическая картина волчанки у собак имеет сходство с изменениями, наблюдаемыми при кожной форме красной волчанки у человека. В ветеринарной практике данная группа заболеваний нередко вызывает трудности, связанные с диагностикой, выбором терапевтической тактики и последующим контролем состояния пациента.</p><p>Описание клинического случая. Собака, метис, в возрасте 5 лет, поступила в ветеринарную клинику с поражениями в области мочки носа; системные клинические отклонения отсутствовали. Диагностика дискоидной красной волчанки основывалась на данных анамнеза, клинического осмотра, цитологического исследования, общего клинического и биохимического анализов крови, а также гистологического изучения биоптатов.</p><p>Для цитологического исследования отбирали мазки-отпечатки с эрозивных участков. Образцы фиксировали, окрашивали набором Диахим-Дифф-Квик (Россия) и подвергали микроскопии при увеличении ×100 с использованием микроскопа Olympus СX 23 (Япония). Для верификации окончательного диагноза под общей анестезией была выполнена панч-биопсия: диаметр панча составлял 3 мм, было получено 3 образца тканей с мочки и крыльев носа. Гистологическое исследование было проведено ветеринарным патоморфологом.</p></sec><sec><title>Обсуждение</title><p>Обсуждение. Описанный случай демонстрирует классическую лицевую форму дискоидной красной волчанки. Изолированная локализация очагов в области мочки носа и отсутствие системной симптоматики соответствуют течению ЛДКВ. Это подчеркивает важность дифференциации данной формы от системной и генерализованной волчанки.</p><p>Диагноз был верифицирован на основании гистопатологического исследования, которое считается «золотым стандартом» диагностики ДКВ. Выявленные изменения позволили исключить иные аутоиммунные дерматозы, в частности пузырчатку, несмотря на обнаружение акантолитических клеток при цитологическом исследовании. Данный факт подтверждает, что цитология не может являться единственным критерием постановки окончательного диагноза.</p></sec><sec><title>Заключение</title><p>Заключение. Представленные результаты лечения и фотоматериалы могут быть полезны практикующим специалистам при диагностике дискоидной красной волчанки. Примененная комплексная терапия продемонстрировала высокую эффективность.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Autoimmune dermatoses in dogs account for only 2–3 % of all skin and coat pathologies encountered in veterinary dermatology practice. Discoid lupus erythematosus (DLE) in dogs is a chronic autoimmune disease. This condition was first described in dogs in 1965, but it was not until the 1970s that cutaneous variants were officially documented in dogs that developed chronic dermatitis following prolonged sun exposure. Lesions may be confined solely to the muzzle, the so-called facial form of discoid lupus erythematosus, or may be localized to other areas of the body the generalized form of DLE. Olivry et al. developed a histopathological classification for DLE. It was also established that the histopathology of lupus shows similarities to the microscopic lesions present in cutaneous lupus erythematosus in humans. For veterinary specialists, this group of diseases raises many questions regarding diagnosis, selection of therapeutic methods, and monitoring of the patient's condition.</p></sec><sec><title>Case Description</title><p>Case Description. A 5-year-old mixed-breed dog was presented to the veterinary clinic with lesions on the nasal planum, without systemic clinical abnormalities. The diagnosis of discoid lupus erythematosus was based on history, clinical examination, cytological examination, complete blood count and serum biochemistry, and histopathological examination of biopsy samples from the nasal planum. For cytological examination, impression smears were taken from ulcerated skin areas. The smears were fixed, stained with Diahem-Diff-Quick stain (Russia), and examined under a microscope at ×100 magnification using an Olympus CX23 microscope (Japan). To establish the definitive diagnosis, a punch biopsy was performed under general anesthesia using a 3-mm punch; three tissue samples were obtained from the nasal planum and nasal wings. Histopathological examination was performed by veterinary pathologist I.V. Bogomolova.</p></sec><sec><title>Discussion</title><p>Discussion. The presented clinical case illustrates the typical facial form of discoid lupus erythematosus (DLE) in a dog. The localization of lesions exclusively to the nasal planum, the absence of systemic symptoms, and normal blood parameters are consistent with the classic course of FDLE, highlighting the importance of differentiating this form from generalized and systemic lupus erythematosus. The diagnosis was verified based on histopathological examination, the gold standard for DLE diagnosis. The identified changes allowed the exclusion of other autoimmune dermatoses, particularly pemphigus, despite the presence of acantholytic cells on cytology. This finding confirms that cytological examination cannot serve as the sole diagnostic criterion.</p></sec><sec><title>Conclusion</title><p>Conclusion. The treatment outcomes and photographic materials presented in this article may be useful for practicing veterinarians in the diagnosis of discoid lupus erythematosus. The applied combination therapy proved to be effective.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>кожная волчанка у собак</kwd><kwd>дискоидная красная волчанка</kwd><kwd>гистопатология волчанки у собак</kwd><kwd>ДКВ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>canine cutaneous lupus</kwd><kwd>discoid lupus erythematosus</kwd><kwd>histopathology of lupus in dogs</kwd><kwd>DLE</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Olivry T, Linder KE, Banovic F. Cutaneous lupus erythematosus in dogs: A comprehensive review. BMC Veterinary Research. 2018;14(1):132. https://doi.org/10.1186/s12917–018–1446–8</mixed-citation><mixed-citation xml:lang="en">Olivry T, Linder KE, Banovic F. Cutaneous lupus erythematosus in dogs: A comprehensive review. 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