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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" article-type="research-article" dtd-version="1.1d1" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher">Молодежный инновационный вестник</journal-id><journal-title-group><journal-title>Молодежный инновационный вестник</journal-title></journal-title-group><issn publication-format="print">2415-7805</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Воронежский государственный медицинский университет имени Н.Н. Бурденко" Министерства здравоохранения Российской Федерации</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">10608</article-id><article-categories><subj-group subj-group-type="heading"><subject>Conference Proceedings</subject></subj-group></article-categories><title-group><article-title>Dieulafoy's disease: modern pathological findings</article-title></title-group><contrib-group><contrib contrib-type="author"><name name-style="western"><surname>Stupnovich</surname><given-names>Diana Vyacheslavovna</given-names></name><bio>&lt;p&gt;student&lt;/p&gt;</bio><email>remol_dobronog@mail.ru</email><uri content-type="orcid">https://orcid.org/0009-0002-5746-0713</uri><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author"><name name-style="western"><surname>Chernikova</surname><given-names>Ulyana Sergeevna</given-names></name><bio>&lt;p&gt;student&lt;/p&gt;</bio><email>remol_dobronog@mail.ru</email><uri content-type="orcid">https://orcid.org/0009-0008-3070-4806</uri><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff id="aff-1">Petrovsky Medical University "Petrovsky National Research Center of Surgery"</aff><pub-date date-type="epub" iso-8601-date="2025-04-25" publication-format="electronic"><day>25</day><month>04</month><year>2025</year></pub-date><volume>14</volume><issue>S1</issue><fpage>265</fpage><lpage>267</lpage><history><pub-date date-type="received" iso-8601-date="2025-03-01"><day>01</day><month>03</month><year>2025</year></pub-date><pub-date date-type="accepted" iso-8601-date="2025-03-22"><day>22</day><month>03</month><year>2025</year></pub-date></history><permissions><copyright-statement>Copyright © 2025, Stupnovich D.V., Chernikova U.S.</copyright-statement><copyright-year>2025</copyright-year></permissions><abstract>&lt;p align="justify"&gt;&lt;span style="font-family: Times New Roman, serif;"&gt;&lt;span style="font-size: large;"&gt;&lt;em&gt;Gastrointestinal bleeding (GIB) represents a well-known clinical problem, related both to the risks of developing chronic pathological conditions due to the predominantly recurrent nature of GIB and with life-threatening conditions in cases of acute and severe bleeding. Thus, the necessity of recognizing and addressing hidden sources of bleeding poses new challenges to medicine. For example, the etiopathogenetic and clinical-diagnostic aspects of GIB associated with the formation of abnormal vessels are still not fully studied. One of the most well-known pathological conditions of this type is Dieulafoy's disease  the presence of a large vessel of constant diameter, localized in the submucosal or subepithelial layer of a hollow organ, leading to damage to the mucosa, followed by prolapse of the vessel and the development of massive bleeding. Nevertheless, despite the apparent simplicity of the pathogenesis of hemorrhagic syndrome of this type of bleeding, unresolved questions remain related to the development of conditions preceding bleeding, namely, the pathogenesis of vascular malformation and further pathomorphological changes in both the vascular wall itself and the environment of the vessel involved in the pathological process.&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;</abstract><kwd-group xml:lang="en"><kwd>Dieulafois disease</kwd><kwd>gastrointestinal bleeding</kwd><kwd>vascular malformation</kwd><kwd>vascular malformation</kwd><kwd>pathological anatomy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>болезнь Дьелафуа</kwd><kwd>желудочно-кишечное кровотечение</kwd><kwd>порок развития сосудов</kwd><kwd>сосудистая мальформация</kwd><kwd>патологическая анатомия</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. 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