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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">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25557/2073-7998.2026.09.83-90</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3575</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>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group></article-categories><title-group><article-title>Синдром KBG: описание собственных наблюдений</article-title><trans-title-group xml:lang="en"><trans-title>KBG Syndrome: Description of Personal Observations</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>Суспицын</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Suspitsin</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Суспицын Е. Н.</p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p><p>197758, г. Санкт-Петербург, Песочный-2, ул. Ленинградская, д. 68</p></bio><bio xml:lang="en"><p>Suspitsin E. N. </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>Малышева</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Malysheva</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Малышева К. С. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</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>Абузова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Abuzova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абузова А. С. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Abuzova A. S. </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>Биннатова</surname><given-names>Д. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Binnatova</surname><given-names>J. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Биннатова Д. О. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Binnatova J. O. </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>Горкина</surname><given-names>О. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorkina</surname><given-names>O. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горкина О. К. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Gorkina O. K.</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>Павлов</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlov</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павлов П. В. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Pavlov P. V. </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>Корзун</surname><given-names>П. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Korzun</surname><given-names>P. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корзун П. Р.</p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Korzun P. R. </p></bio><email xlink:type="simple">polinabelovastudent@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лаптиев</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Laptiev</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лаптиев С. А. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Laptiev S. A. </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>Фокин</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fokin</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фокин Н. А. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Fokin N. A. </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>Шаронова</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharonova</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шаронова О. С. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p></bio><bio xml:lang="en"><p>Sharonova O. S. </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>Имянитов</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Imyanitov</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Имянитов Е. Н. </p><p>194100, г. Санкт-Петербург, Литовская ул., 2</p><p>197758, г. Санкт-Петербург, Песочный-2, ул. Ленинградская, д. 68</p></bio><bio xml:lang="en"><p>Imyanitov E. N. </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный педиатрический медицинский университет Минздрава России; НМИЦ онкологии им. Н. Н. Петрова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.-Petersburg Pediatric Medical University; N. N. Petrov Institute of Oncology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный педиатрический медицинский университет Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St.-Petersburg Pediatric Medical 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>14</day><month>10</month><year>2026</year></pub-date><volume>25</volume><issue>9</issue><fpage>83</fpage><lpage>90</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Суспицын Е.Н., Малышева К.С., Абузова А.С., Биннатова Д.О., Горкина О.К., Павлов П.В., Корзун П.Р., Лаптиев С.А., Фокин Н.А., Шаронова О.С., Имянитов Е.Н., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Суспицын Е.Н., Малышева К.С., Абузова А.С., Биннатова Д.О., Горкина О.К., Павлов П.В., Корзун П.Р., Лаптиев С.А., Фокин Н.А., Шаронова О.С., Имянитов Е.Н.</copyright-holder><copyright-holder xml:lang="en">Suspitsin E.N., Malysheva K.S., Abuzova A.S., Binnatova J.O., Gorkina O.K., Pavlov P.V., Korzun P.R., Laptiev S.A., Fokin N.A., Sharonova O.S., Imyanitov E.N.</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.medgen-journal.ru/jour/article/view/3575">https://www.medgen-journal.ru/jour/article/view/3575</self-uri><abstract><p>Синдром KBG – аутосомно-доминантное заболевание, проявляющееся задержкой психоречевого развития, когнитивными и поведенческими нарушениями, а также особенностями фенотипа. В настоящей работе представлены два клинических случая синдрома KBG с выявленными патогенными гетерозиготными вариантами в гене ANKRD11. У обоих пациентов отмечались малые аномалии развития (долихоцефалическая форма головы, удлиненное лицо, синофриз, длинные ресницы, широкое основание носа, широкий рот, поперечные ладонные складки, укорочение и клинодактилия пятых пальцев обеих кистей), диспропорциональное телосложение, задержка психоречевого развития, изменения на ЭЭГ, вентрикуломегалия. В то же время, такой специфический признак KBG-синдрома как макродентия, отсутствует у обоих пациентов. У одного из больных заболевание сопровождалось эпилептическими приступами и аутистическими особенностями поведения, тогда как у второго присутствовали позднее закрытие большого родничка и кондуктивная тугоухость. Значительная фенотипическая вариабельность KBG-синдрома подчеркивает ключевую роль секвенирования нового поколения в диагностике этого заболевания.</p></abstract><trans-abstract xml:lang="en"><p>KBG syndrome is an autosomal dominant disorder characterized by delays in psychomotor and speech development, cognitive and behavioral impairments, and distinctive phenotypic features. This paper presents two clinical cases of KBG syndrome with pathogenic heterozygous variants in the ANKRD11 gene. Both patients exhibited minor congenital anomalies (dolichocephaly, elongated face, synophrys, long eyelashes, broad nasal bridge, wide mouth, single transverse palmar creases, shortening and clinodactyly of the fifth fingers of both hands), disproportionate body, delayed psychomotor and speech development, EEG abnormalities, and ventriculomegaly. However, a hallmark feature of KBG syndrome macrodontia was absent in both patients. In one patient the condition was accompanied by epilepsy and autism-like behavioral features, whereas the other showed delayed closure of the anterior fontanelle and conductive hearing loss. The marked phenotypic variability of KBG syndrome underscores the key role of next-generation sequencing in the diagnosis of this disorder.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ANKRD11</kwd><kwd>мутации</kwd><kwd>синдром KBG</kwd><kwd>расстройства аутистического спектра</kwd><kwd>высокопроизводительное секвенирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ANKRD11</kwd><kwd>mutations</kwd><kwd>KBG syndrome</kwd><kwd>autism spectrum disorders</kwd><kwd>next-generation sequencing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана грантом Российского научного фонда (РНФ) № 24-45-00067.</funding-statement><funding-statement xml:lang="en">This work was supported by the Russian Science Foundation, grant No. 24-45-00067.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Peluso F., Caraffi S. 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