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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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Head and Neck Tumors</journal-id><journal-title-group><journal-title xml:lang="en">Head and Neck Tumors</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли головы и шеи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-1468</issn><issn publication-format="electronic">2411-4634</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">617</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2021-11-1-115-121</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Metastases of papillary radioiodine-refractory thyroid cancer in the parapharyngeal lymph node: clinical case</article-title><trans-title-group xml:lang="ru"><trans-title>Метастазы папиллярного йодрезистентного рака щитовидной железы в окологлоточном лимфатическом узле: клинический случай</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4045-1247</contrib-id><name-alternatives><name xml:lang="en"><surname>Ognerubov</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Огнерубов</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nikolay Alekseevich Ognerubov</p><p>93 Sovetskaya St., Tambov 392000</p></bio><bio xml:lang="ru"><p>Николай Алексеевич Огнерубов</p><p>392000 Тамбов, ул. Советская, 93</p></bio><email>ognerubov_n.a@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Antipova</surname><given-names>T. S.</given-names></name><name xml:lang="ru"><surname>Антипова</surname><given-names>Т. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>29 Moskovskaya St., Tambov 392000</p></bio><bio xml:lang="ru"><p>392000 Тамбов, ул. Московская, 29</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">G.R. Derzhavin Tambov State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО Тамбовский государственный университет им. Г.Р. Державина</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">PET-Technology, Center for Nuclear Medicine</institution></aff><aff><institution xml:lang="ru">ПЭТ-Технолоджи ООО, Центр ядерной медицины</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-04-24" publication-format="electronic"><day>24</day><month>04</month><year>2021</year></pub-date><volume>11</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>115</fpage><lpage>121</lpage><history><date date-type="received" iso-8601-date="2021-04-24"><day>24</day><month>04</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-04-24"><day>24</day><month>04</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Ognerubov N.A., Antipova T.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Огнерубов Н.А., Антипова Т.С.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Ognerubov N.A., Antipova T.S.</copyright-holder><copyright-holder xml:lang="ru">Огнерубов Н.А., Антипова Т.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ogsh.abvpress.ru/jour/article/view/617">https://ogsh.abvpress.ru/jour/article/view/617</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> Papillary thyroid cancer (PTC) usually metastasizes into the central and lateral lymph nodes (LNs) of the neck. Metastases into the retropharyngeal and parapharyngeal LNs are rare. Their presence attests to aggressive PTC.</p><p><bold>The study objective</bold> is to describe a rare case of metastases of papillary radioiodine-refractory PTC into the parapharyngeal LN.</p><p><bold>Clinical case</bold>. In 2015, female patient K., 40 years old, underwent thyroidectomy due to PTC. Histological examination verified papillary PTC with growth through the capsule and ingrowth into the surrounding tissues and muscles. In a separately admitted LN, metastases of the same cancer were observed. One year later, regional metastases in the lateral neck LNs were detected. Radioiodine therapy (activity 131I 4.5 GBq) was performed followed by fascial circular section of the neck tissues on the right per thyroid type. Morphological examination verified presence of papillary PTC metastases in 4 LNs. In January of 2018, positron emission tomography showed metastases in the paratracheal LNs. Central neck lymph node dissection was performed. Per histological conclusion, fat tissue and LN contained multiple metastases of papillary PTC. In October of the same year, repeat radioiodine therapy (activity 131I 3.0 GBq) was performed. Thyroglobulin levels increased. In June of 2020, repeat positron emission tomography showed a single metastasis in the parapharyngeal LN. Due to small size of the metastasis and absence of signs of progression, dynamic follow-up and hormone therapy were suggested to the patient.</p><p><bold>Conclusion.</bold> Metastatic involvement of parapharyngeal LNs is rare, especially in radioiodine-refractory PTC. They can be detected both during primary diagnosis and after the treatment during dynamic follow-up, as well as a single manifestation of PTC, which should be taken into account during differential diagnosis.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Папиллярный рак щитовидной железы (РЩЖ) чаще всего метастазирует в центральные и боковые лимфатические узлы (ЛУ) шеи. Метастазы в заглоточные и окологлоточные ЛУ встречаются редко. Их наличие свидетельствует об агрессивном течении РЩЖ.</p><p><bold>Цель работы</bold> - описать редкий случай метастазирования папиллярного йодрезистентного РЩЖ в окологлоточный ЛУ.</p><p><bold>Клинический случай.</bold> Пациентке К., 40 лет, в апреле 2015 г. выполнена тиреоидэктомия по поводу РЩЖ. При гистологическом исследовании верифицирован папиллярный РЩЖ с прорастанием сквозь капсулу и врастанием в окружающую клетчатку и мышцы. В отдельно присланном ЛУ обнаружены метастазы того же рака. Через 1 год выявлены регионарные метастазы в боковых ЛУ шеи. Проведена радиойодтерапия (активность 131I 4,5 ГБк), затем фасциально-футлярное иссечение клетчатки шеи справа по щитовидному типу. При морфологическом исследовании верифицировано наличие метастазов папиллярного РЩЖ в 4 ЛУ. В январе 2018 г. по данным позитронной эмиссионной томографии выявлены метастазы в паратрахеальных ЛУ. Выполнена центральная шейная лимфодиссекция. Согласно гистологическому заключению, в жировой клетчатке и ЛУ присутствовали множественные метастазы папиллярного РЩЖ. В октябре того же года проведена повторная радиойодтерапия (активностью 131I 3,0 ГБк). Наблюдался рост уровня тиреоглобулина. В июне 2020 г. при повторной позитронной эмиссионной томографии обнаружен одиночный метастаз в окологлоточном ЛУ. Ввиду небольшого размера метастаза и отсутствия признаков прогрессирования пациентке предложено динамическое наблюдение и гормонотерапия.</p><p><bold>Заключение.</bold> Метастатическое поражение окологлоточных ЛУ встречается редко, особенно при йодрезистент-ном РЩЖ. Они могут быть выявлены как при постановке первичного диагноза, так и по окончании лечения, в процессе динамического наблюдения, а также как единственное проявление РЩЖ, это необходимо учитывать при дифференциальной диагностике.</p></trans-abstract><kwd-group xml:lang="en"><kwd>thyroid cancer</kwd><kwd>papillary type</kwd><kwd>parapharyngeal lymph nodes</kwd><kwd>metastases</kwd><kwd>positron emission tomography</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак щитовидной железы</kwd><kwd>папиллярный вариант</kwd><kwd>окологлоточные лимфатические узлы</kwd><kwd>метастазы</kwd><kwd>позитронная эмиссионная томография</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">1.	Otsuki N., Morita N., Furukawa T. et al. Functional and oncological outcomes after retropharyngeal node dissection for papillary thyroid carcinoma. Eur Arch Otorhinolaryngol 2019;276(6):1809—14. 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