<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.25557/2073-7998.2025.10.145-147</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-3268</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>КРАТКОЕ СООБЩЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BRIEF REPORT</subject></subj-group></article-categories><title-group><article-title>Мозаичная тетрасомия 13q в дифференциальной диагностике гипомеланоза Ито</article-title><trans-title-group xml:lang="en"><trans-title>Mosaic tetrasomy 13q in the differential diagnosis of hypomelanosis of Ito.</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>Шилова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shilova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, г. Москва, ул. Москворечье, д.1 </p></bio><bio xml:lang="en"><p>1, Moskvorechye st, Moscow 115522 </p></bio><email xlink:type="simple">nvsh05@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маркова</surname><given-names>Ж. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Markova</surname><given-names>Zh. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, г. Москва, ул. Москворечье, д.1 </p></bio><bio xml:lang="en"><p>1, Moskvorechye st, Moscow 115522 </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>Табаков</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Tabakov</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>115522, г. Москва, ул. Москворечье, д.1 </p></bio><bio xml:lang="en"><p>1, Moskvorechye st, Moscow 115522 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ Медико-генетический научный центр имени академика Н.П.Бочкова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Centre for Medical Genetics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>24</day><month>11</month><year>2025</year></pub-date><volume>24</volume><issue>10</issue><fpage>145</fpage><lpage>147</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шилова Н.В., Маркова Ж.Г., Табаков В.Б., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Шилова Н.В., Маркова Ж.Г., Табаков В.Б.</copyright-holder><copyright-holder xml:lang="en">Shilova N.V., Markova Z.G., Tabakov V.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.medgen-journal.ru/jour/article/view/3268">https://www.medgen-journal.ru/jour/article/view/3268</self-uri><abstract><p>Гипомеланоз Ито является одной из форм пигментного мозаицизма, характеризующегося участками гипер-или гипопигментации кожи и ассоциированного с мозаичными численными или структурными хромосомными аномалиями. Проведено цитогенетическое и молекулярно-цитогенетическое исследование клеток двух тканей семи пациентов с направительным диагнозом «гипомеланоз Ито». У двух пациентов выявлена мозаичная сегментная тетрасомия дистального района 13q, не характерная для гипомеланоза Ито, но ассоциированная с другой формой пигментного мозаицизма – филлоидным гипомеланозом. Представленные результаты демонстрируют необходимость использования цитогенетического и молекулярноцитогенетического методов как важного звена в дифференциальной диагностике типов пигментного мозаицизма.</p></abstract><trans-abstract xml:lang="en"><p>Hypomelanosis of Ito is one of cutaneous patterns of pigmentary mosaicism characterized by regions of skin hypo- and hyperpigmentation and associated with mosaic numerical and structural chromosomal abnormalities. A comprehensive cytogenetic and molecular cytogenetic analysis was conducted on cells derived from two tissues of seven patients initially diagnosed with «Hypomelanosis of Ito». In two of these patients, mosaic segmental tetrasomy involving the distal region of the q-arm of chromosome 13 was identified. This chromosomal abnormality is not typically associated with hypomelanosis of Ito but is instead linked to another form of pigmentary mosaicism, known as phylloid hypomelanosis. These findings underscore the importance of employing cytogenetic and molecular cytogenetic techniques as a critical component in the differential diagnosis of various forms of pigmentary mosaicism.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пигментный мозаицизм</kwd><kwd>мозаичная сегментная тетрасомия 13q</kwd><kwd>гипомеланоз Ито</kwd><kwd>филлоидный гипомеланоз</kwd><kwd>FISH</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pigmentary mosaicism</kwd><kwd>mosaic segmental tetrasomy 13q</kwd><kwd>hypomelanosis of Ito</kwd><kwd>phylloid hypomelanosis</kwd><kwd>FISH</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания Министерства науки и высшего образования (тема № 122032300370-1).</funding-statement><funding-statement xml:lang="en">The study was carried out on the state assignment of the Ministry of Science and Higher Education (No 122032300370-1).</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">Kromann A.B., Ousager L.B., Mohammad Ali I.K. et al. Pigmentary mosaicism: a review of original literature and recommendations for future handling. Orphanet Journal of Rare Diseases. 2018;13:39.</mixed-citation><mixed-citation xml:lang="en">Kromann A.B., Ousager L.B., Mohammad Ali I.K. et al. Pigmentary mosaicism: a review of original literature and recommendations for future handling. Orphanet Journal of Rare Diseases. 2018;13:39.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Schaffer J. Pigmentary mosaicism. Clinics in Dermatology. 2022;40:322–338.</mixed-citation><mixed-citation xml:lang="en">Schaffer J. Pigmentary mosaicism. Clinics in Dermatology. 2022;40:322–338.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Oiso N., Kawada A. Pigmentary mosaicism and specific forms of phylloid hypo- and hypermelanosis. World J Dermatol. 2012;1(2):6-9.</mixed-citation><mixed-citation xml:lang="en">Oiso N., Kawada A. Pigmentary mosaicism and specific forms of phylloid hypo- and hypermelanosis. World J Dermatol. 2012;1(2):6-9.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Myers J.N., Davis L., Sheehan D., Kulharya A.S. Mosaic tetrasomy 13q and phylloid hypomelanosis: a case report and review of the literature. Pediatric Dermatology. 2015;32(2): 263–266.</mixed-citation><mixed-citation xml:lang="en">Myers J.N., Davis L., Sheehan D., Kulharya A.S. Mosaic tetrasomy 13q and phylloid hypomelanosis: a case report and review of the literature. Pediatric Dermatology. 2015;32(2): 263–266.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Sturm R.A., Box N.F., Ramsay M. Human pigmentation genetics: The difference is only skin deep. Bioessays. 1998;20:712–721.</mixed-citation><mixed-citation xml:lang="en">Sturm R.A., Box N.F., Ramsay M. Human pigmentation genetics: The difference is only skin deep. Bioessays. 1998;20:712–721.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Santiago A., Erickson C.A. Ephrin-B ligands play a dual role in the control of neural crest cell migration. Development. 2002;129:3621–3632.</mixed-citation><mixed-citation xml:lang="en">Santiago A., Erickson C.A. Ephrin-B ligands play a dual role in the control of neural crest cell migration. Development. 2002;129:3621–3632.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
