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<article article-type="research-article" dtd-version="1.2" xml:lang="ru" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><front><journal-meta><journal-id journal-id-type="issn">2658-6533</journal-id><journal-title-group><journal-title>Научные результаты биомедицинских исследований</journal-title></journal-title-group><issn pub-type="epub">2658-6533</issn></journal-meta><article-meta><article-id pub-id-type="doi">10.18413/2313-8955-2017-3-3-3-11</article-id><article-id pub-id-type="publisher-id">1166</article-id><article-categories><subj-group subj-group-type="heading"><subject>Клиническая медицина</subject></subj-group></article-categories><title-group><article-title>ОСТРЫЙ АППЕНДИЦИТ ПРИ РЕДКОМ ВАРИАНТЕ ИНВАГИНАЦИИ СТРОЕНИЯ ЧЕРВЕОБРАЗНОГО ОТРОСТКА. КЛИНИЧЕСКИЙ СЛУЧАЙ И ОБЗОР ЛИТЕРАТУРЫ</article-title><trans-title-group xml:lang="en"><trans-title>ACUTE APPENDICITIS IN A RARE VARIANT OF INVAGINATION OF THE VERMIFORM APPENDIX. CASE REPORT AND REVIEW OF LITERATURE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Должиков</surname><given-names>Александр Анатольевич</given-names></name><name xml:lang="en"><surname>Dolzhikov</surname><given-names>Aleksandr A.</given-names></name></name-alternatives><email>dolzhikov@bsuedu.ru</email></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Мигунов</surname><given-names>Андрей Анатольевич</given-names></name><name xml:lang="en"><surname>Migunov</surname><given-names>Andrei A.</given-names></name></name-alternatives></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="ru"><surname>Луговской</surname><given-names>Сергей Леонидович</given-names></name><name xml:lang="en"><surname>Lugovskoy</surname><given-names>Sergei L.</given-names></name></name-alternatives></contrib></contrib-group><pub-date pub-type="epub"><year>2017</year></pub-date><volume>3</volume><issue>3</issue><fpage>0</fpage><lpage>0</lpage><self-uri content-type="pdf" xlink:href="/media/medicine/2017/3/3-11.pdf" /><abstract xml:lang="ru"><p>Патология червеобразного отростка остается одним из актуальных разделов абдоминальной хирургии. Некоторые его заболевания являются редкими, но могут представлять сложности для диагностики и лечения и чреваты серьезными осложнениями. К их числу относится инвагинация в изолированном виде или с другими структурами илео-цекальной области. Инвагинация может быть вызвана другими ранее не диагностированными первичными поражениями отростка (доброкачественные или злокачественные опухоли, мукоцеле, эндометриоз, паразиты). С другой стороны, инвагинат может симулировать опухолевые и опухолеподобные образования слепой кишки и приводить к диагностическим ошибкам. Описано редкое наблюдение сложного варианта инвагинации червеобразного отростка с развитием острого аппендицита. По морфологическим данным произошла инвагинация отростка внутрь себя и полная инвагинация в слепую кишку &amp;ndash; пятый тип вследствие прогрессирования первого типа по классификации McSwain. Стенка инвагината имела инвертированную структуру с наружным расположением слизистой оболочки. Приведены данные литературы, относящиеся к истории изучения проблемы, классификации, причинам и механизмам развития инвагинации.</p></abstract><trans-abstract xml:lang="en"><p>The pathology of the vermiform appendix remains one of the topical issues of abdominal surgery. Some of its diseases are rare, but may present difficulties for diagnosis and treatment and are fraught with serious complications. These include invagination (intussusception) in isolated form or with other structures of the ileo-cecal region. Invagination may be caused by other previously unidentified lesions (benign or malignant tumors, mucocele, endometriosis, parasites). On the other hand, the invaginated appendix simulate tumor and tumor-like forms of the cecum and lead to diagnostic errors. The article describes a rare case of a complex variant of appendicular invagination with acute appendicitis. According to the morphological data, the possible mechanism of invagination was as follows: invagination of the appendix from its tip into itself with the fragments of mesappendix, later followed by complete invagination into the cecum &amp;ndash; type V due to the progression of type I, according to classification of McSwain. The wall of the invaginated appendix had an inverted structure with an external disposition of the mucosa. The literature data relating to the history of the study of the problem, classifications, causes and mechanisms of appendicular invagination are reviewed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>червеобразный отросток</kwd><kwd>инвагинация</kwd><kwd>аппендицит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>vermiform appendix</kwd><kwd>invagination</kwd><kwd>appendicitis</kwd></kwd-group></article-meta></front><back><ref-list><title>Список литературы</title><ref id="B1"><mixed-citation>1. Калитеевский П.Ф. Болезни червеобразного отростка. 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