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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Terapevticheskii arkhiv</journal-id><journal-title-group><journal-title xml:lang="en">Terapevticheskii arkhiv</journal-title><trans-title-group xml:lang="ru"><trans-title>Терапевтический архив</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0040-3660</issn><issn publication-format="electronic">2309-5342</issn><publisher><publisher-name xml:lang="en">LLC Obyedinennaya Redaktsiya</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">633463</article-id><article-id pub-id-type="doi">10.26442/00403660.2024.10.202872</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Search for clinical, genetic, morphological and immunohistochemical predictors of parathyroid cancer recurrence</article-title><trans-title-group xml:lang="ru"><trans-title>Поиск клинических, генетических, морфологических и иммуногистохимических предикторов рецидива рака околощитовидных желез</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7879-8495</contrib-id><name-alternatives><name xml:lang="en"><surname>Kim</surname><given-names>Ekaterina I.</given-names></name><name xml:lang="ru"><surname>Ким</surname><given-names>Екатерина Игоревна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>врач-эндокринолог отд-ния патологии околощитовидных желез и нарушений минерального обмена</p></bio><email>kat-alex2007@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6667-062X</contrib-id><name-alternatives><name xml:lang="en"><surname>Eremkina</surname><given-names>Anna K.</given-names></name><name xml:lang="ru"><surname>Еремкина</surname><given-names>Анна Константиновна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>канд. мед. наук, зав. отд-нием патологии околощитовидных желез и нарушений минерального обмена</p></bio><email>kat-alex2007@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6935-3187</contrib-id><name-alternatives><name xml:lang="en"><surname>Elfimova</surname><given-names>Alina R.</given-names></name><name xml:lang="ru"><surname>Елфимова</surname><given-names>Алина Ринатовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>врач-статистик отд. цифровой трансформации</p></bio><email>kat-alex2007@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9717-9742</contrib-id><name-alternatives><name xml:lang="en"><surname>Mokrysheva</surname><given-names>Natalia G.</given-names></name><name xml:lang="ru"><surname>Мокрышева</surname><given-names>Наталья Георгиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="ru"><p>чл.-кор. РАН, д-р мед. наук, проф., зав. каф. персонализированной и трансляционной медицины, дир.</p></bio><email>mokrisheva.natalia@endocrincentr.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Endocrinology Research Center</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр эндокринологии» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-12-09" publication-format="electronic"><day>09</day><month>12</month><year>2024</year></pub-date><volume>96</volume><issue>10</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru">Вопросы эндокринологии</issue-title><fpage>958</fpage><lpage>967</lpage><history><date date-type="received" iso-8601-date="2024-06-17"><day>17</day><month>06</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-08-27"><day>27</day><month>08</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Consilium Medicum</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, ООО "Консилиум Медикум"</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Consilium Medicum</copyright-holder><copyright-holder xml:lang="ru">ООО "Консилиум Медикум"</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-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ter-arkhiv.ru/0040-3660/article/view/633463">https://ter-arkhiv.ru/0040-3660/article/view/633463</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Currently, there is no consensus on postoperative risk stratification for parathyroid cancer (PC). The risk factors of disease progression are crucial for choosing the optimal treatment strategy, including adjuvant methods and patient,s follow-up.</p> <p><bold>Aim. </bold>Identifying predictors of PC recurrence</p> <p><bold>Materials and methods. </bold>We performed a retrospective observational study of 85 patients with verified PC divided into remission (<italic>n</italic>=61) and recurrence (<italic>n</italic>=19) groups after primary surgical treatment for the period 2004–2023. The analyzed parameters included demographic, laboratory and instrumental data of patients with PC, the presence of a mutation in the <italic>CDC73</italic> gene, morphological and immunohistochemical characteristics of the primary tumor.</p> <p><bold>Results. </bold>After adjustments for multiple comparisons, a statistically significant association of recurrence was found for preoperative calcium level (<italic>p</italic>&lt;0.001), pT4 stage (<italic>p</italic>&lt;0.001) according to TNM-classification (Tumor, Nodus, Metastasis) American Joint Committee on Cancer 2017. There was a statistical trend for calcium correction for hypoalbuminemia (<italic>p</italic>=0.002), presence of nephrolithiasis/nephrocalcinosis (<italic>p</italic>=0.021), parathyroid hormone level 6 months after primary surgery (<italic>p</italic>&lt;0.05), pT3 stage TNM (<italic>p</italic>=0.007), nuclear expression of parafibromin in tumor tissue (<italic>p</italic>&lt;0.05). We did not reveal any associations between disease recurrence and sex, age, volume of surgical treatment, germline mutation in the <italic>CDC73</italic>, parafibromin expression and Ki-67 in tumor tissue.</p> <p><bold>Conclusion.</bold> Our study revealed several factors of poor prognosis, allowing to identify a risk group for recurrence, which can contribute to active dynamic monitoring and timely treatment.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> В настоящее время не существует единых подходов к послеоперационной стратификации рисков у пациентов с раком околощитовидных желез (РОЩЖ). Определение неблагоприятных прогностических факторов течения заболевания необходимо для выбора оптимальной лечебной стратегии, в том числе для определения целесообразности применения адъювантных методов и дальнейшего наблюдения за больным.</p> <p><bold>Цель. </bold>Определить предикторы рецидива РОЩЖ.</p> <p><bold>Материалы и методы. </bold>Проведено ретроспективное наблюдательное исследование с включением 85 пациентов с верифицированным РОЩЖ, которые разделены на группы ремиссии (<italic>n</italic>=61) и рецидива (<italic>n</italic>=19) после первичного хирургического лечения в 2004–2023 гг. Анализируемые показатели включали демографические, лабораторно-инструментальные данные больных РОЩЖ, наличие мутации в гене <italic>CDC73</italic>, морфологические и иммуногистохимические характеристики первичной опухоли.</p> <p><bold>Результаты. </bold>Выявлена статистически значимая ассоциация рецидива с уровнем дооперационного кальция общего (<italic>p</italic>&lt;0,001), стадией pT4 (<italic>p</italic>&lt;0,001) по TNM-классификации (Tumor, Nodus, Metastasis) злокачественных новообразований согласно Американскому объединенному комитету по борьбе с раком 2017 г. Установлена тенденция к различиям у пациентов с рецидивом и без по уровню скорректированного по альбумину кальция (<italic>p</italic>=0,002), наличию нефролитиаза/нефрокальциноза (<italic>p</italic>=0,021), уровню паратиреоидного гормона через 6 мес после первичной операции (<italic>p</italic>&lt;0,05), стадии pT3 по TNM-классификации (<italic>p</italic>=0,007), ядерной экспрессии парафибромина в ткани опухоли (<italic>p</italic>&lt;0,05). Данных о наличии связи рецидива заболевания с полом, возрастом, объемом хирургического лечения, наличием герминальной мутации в гене <italic>CDC73</italic>, экспрессией парафибромина в ткани опухоли и индексом пролиферативной активности Ki-67 не получено.</p> <p><bold>Заключение.</bold> Определены клинико-лабораторные и морфологические факторы неблагоприятного прогноза, позволяющие выделить группу риска рецидива, что может способствовать активному динамическому наблюдению и своевременному назначению лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>primary hyperparathyroidism</kwd><kwd>parathyroid cancer</kwd><kwd>disease-free survival</kwd><kwd>diagnostics</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>первичный гиперпаратиреоз</kwd><kwd>рак околощитовидных желез</kwd><kwd>безрецидивная выживаемость</kwd><kwd>диагностика</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was conducted within the framework of a grant from the World-Class Scientific Center (agreement №075-15-2022-310).</funding-statement><funding-statement xml:lang="ru">Исследование проведено в рамках гранта Научного центра мирового уровня (соглашение №075-15-2022-310).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Talat N, Schulte KM. 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