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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">medparasitology</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская паразитология и паразитарные болезни</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Parasitology and Parasitic Diseases</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0025-8326</issn><issn pub-type="epub">2713-1777</issn><publisher><publisher-name>Научно-образовательный паразитологический центр им. П.Г. Сергиева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33092/0025-8326mp2024.3.57-63</article-id><article-id custom-type="edn" pub-id-type="custom">WTDEOS</article-id><article-id custom-type="elpub" pub-id-type="custom">medparasitology-71</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>СЛУЧАЙ ИЗ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CASE REPORTES</subject></subj-group></article-categories><title-group><article-title>Микроспоридии или клетки панета? Особенности диагностики микроспоридиоза человека по гистосрезам кишечника</article-title><trans-title-group xml:lang="en"><trans-title>Microsporidiia or paneth cells? Features of human microsporidiosis diagnostics by intestinal histosections</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>Федянина</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedyanina</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Максимова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Maksimova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фомина</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Fomina</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степанова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepanova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дмитриев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dmitriev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Морозкин</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Morozkin</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Веселова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Veselova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО Первый МГМУ им. И.М. Сеченова Минздрава России (Сеченовский Университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FSAE Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФБУН Центральный НИИ Эпидемиологии Роспотребнадзора</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Budget Institution of Science «Central Research Institute for Epidemiology» of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>04</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>56</fpage><lpage>61</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Научно-образовательный паразитологический центр им. П.Г. Сергиева, 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Научно-образовательный паразитологический центр им. П.Г. Сергиева</copyright-holder><copyright-holder xml:lang="en">Научно-образовательный паразитологический центр им. П.Г. Сергиева</copyright-holder><license xlink:href="https://www.medparasitology.com/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.medparasitology.com/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.medparasitology.com/jour/article/view/71">https://www.medparasitology.com/jour/article/view/71</self-uri><abstract><p>Клинико-диагностическая лаборатория Института медицинской паразитологии, тропических и трансмиссивных заболеваний им. Е.И. Марциновского Сеченовского Университета продолжает в публикациях делиться опытом диагностики редко встречающихся, необычных и/или неоднозначных случаев паразитозов. В статье описаны два случая с подозрением на микроспоридиоз кишечника. Обсуждаются трудности и вероятность ошибки микроскопического метода при идентификации внутриклеточных простейших на гистосрезах.</p></abstract><trans-abstract xml:lang="en"><p>The Clinical Diagnostic Laboratory of Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, I.M. Sechenov First Moscow State Medical University continues to share its experience in diagnosing rare, unusual and/or ambiguous cases of parasitosis in publications. The article describes two cases of suspected intestinal microsporidiosis. The difficulties and the probability of error of the microscopic method in the identification of intracellular protozoa on histosections are discussed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>микроспоридии</kwd><kwd>лабораторная диагностика микроспоридий человека</kwd><kwd>ПЦР - диагностика</kwd><kwd>Enterocytozoon bieneusi</kwd><kwd>Encephalitozoon intestinalis</kwd><kwd>E. hellem</kwd><kwd>E. cuniculi</kwd><kwd>клетки Панета</kwd></kwd-group><kwd-group xml:lang="en"><kwd>microsporidia</kwd><kwd>laboratory diagnostics of human microsporidia</kwd><kwd>PCR diagnostics</kwd><kwd>Enterocytozoon bieneusi</kwd><kwd>Encephalitozoon intestinalis</kwd><kwd>E. hellem</kwd><kwd>E. cuniculi</kwd><kwd>Paneth cells</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">James T.Y., Pelin A., Bonen L., Ahrendt S., Sain D., Corradi N., Stajich J.E. 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