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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">clinicaloncology</journal-id><journal-title-group><journal-title xml:lang="ru">Клинический случай в онкологии</journal-title><trans-title-group xml:lang="en"><trans-title>Clinical Case in Oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-1477</issn><issn pub-type="epub">3034-4018</issn><publisher><publisher-name>ОНКОПРАКТИК</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.62546/3034-1477-2024-2-2-63-68</article-id><article-id custom-type="elpub" pub-id-type="custom">clinicaloncology-39</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>КЛИНИЧЕСКИЕ СЛУЧАИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CASE REPORTS</subject></subj-group></article-categories><title-group><article-title>Клинический случай позднего выявления первичной медиастинальной герминогенной опухоли</article-title><trans-title-group xml:lang="en"><trans-title>A case report of late detection of primary mediastinum herm cell tumor</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>Благова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Blagova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Благова Арина Андреевна — 31.08.57, врач-онколог онкологического химиотерапевтического отделения (противоопухолевой лекарственной терапии) № 11</p><p>198255, Санкт-Петербург, пр. Ветеранов, д. 56 </p></bio><bio xml:lang="en"><p>Blagova Arina Andreevna — 31.08.57, an oncologist at the Oncology Chemotherapy Department (Antitumor Drug Therapy) No. 11</p><p>198255, St. Petersburg, Veteranov Ave, 56 </p></bio><email xlink:type="simple">arinablagova@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>Наталенко</surname><given-names>К. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Natalenko</surname><given-names>K. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталенко Кирилл Евгеньевич — 31.08.57, врач-онколог онкологического химиотерапевтического отделения (противоопухолевой лекарственной терапии) № 11</p><p>198255, Санкт-Петербург, пр. Ветеранов, д. 56 </p></bio><bio xml:lang="en"><p>Natalenko Kirill Evgenevich — 31.08.57, an oncologist at the Oncology Chemotherapy Department (Antitumor Drug Therapy) No. 11</p><p>198255, St. Petersburg, Veteranov Ave, 56 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>СПб ГБУЗ «Городской клинический онкологический диспансер»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>City Clinical Oncology Dispensary</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>17</day><month>10</month><year>2024</year></pub-date><volume>2</volume><issue>2</issue><fpage>63</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Благова А.А., Наталенко К.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Благова А.А., Наталенко К.Е.</copyright-holder><copyright-holder xml:lang="en">Blagova A.A., Natalenko K.E.</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.oncocase.ru/jour/article/view/39">https://www.oncocase.ru/jour/article/view/39</self-uri><abstract><p>Герминогенные опухоли являются редкими злокачественными новообразованиями. Внегонадная локализация составляет около 10% от всех герминогенных опухолей, из них до 3% — медиастинальные. Низкая частота встречаемости, неспецифическая клиническая картина затрудняют первичную диагностику, приводят к несвоевременной постановке диагноза и началу специфического лечения. Огромную роль в выявлении таких опухолей и маршрутизации пациентов играет первичное звено. На амбулаторном этапе пациент должен быть обследован и направлен в профильное учреждение для специализированного лечения в кратчайшие сроки. С целью дифференциальной диагностики на начальных этапах между медиастинальными герминогенными опухолями и лимфопролиферативными заболеваниями, саркомами средостения, тимомами и др. необходим контроль онкомаркеров: альфафетопротеина (далее АФП), бета-хорионического гонадотропина человека (далее бета-ХГЧ), лактатдегидрогиназы (далее ЛДГ). При высоком уровне данных показателей, при дефиците времени допустимо начало специализированного противоопухолевого лечения без данных гистологического заключения. В настоящее время также не стоит забывать о роли новой коронавирусной инфекции, которая затрудняет дифференциальную диагностику на начальных этапах. В данной статье представлен клинический случай позднего выявления герминогенной опухоли, попытки проведения системной терапии на фоне осложненного течения заболевания.</p></abstract><trans-abstract xml:lang="en"><p>Germ cell tumors are rare malignant neoplasms. Extragondal localization accounts for about 10% of all germ cell tumors, with up to 3% being mediastinal. The low incidence, along with a nonspecific clinical presentation, complicates initial diagnosis and leads to delays in diagnosis and the initiation of specific treatment. Primary care plays a crucial role in detecting such tumors and in patient routing. At the outpatient stage, the patient should be examined and referred to a specialized facility for specific treatment as quickly as possible. For differential diagnosis at the initial stages between mediastinal germ cell tumors and lymphoproliferative diseases, mediastinal sarcomas, thymomas, and others, monitoring tumor markers is necessary: alpha-fetoprotein (AFP), beta-human chorionic gonadotropin (beta-HCG), and lactate dehydrogenase (LDH). When these markers are elevated and time is critical, it is permissible to start specialized antitumor treatment without histological confirmation.</p><p>Currently, it is also important to consider the role of the new coronavirus infection, which complicates differential diagnosis at the initial stages. This article presents a clinical case of late detection of a germ cell tumor and attempts to conduct systemic therapy in the context of the disease’s complicated progression.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>первичная медиастинальная герминогенная опухоль</kwd><kwd>несеминома</kwd><kwd>эмбриональный рак</kwd></kwd-group><kwd-group xml:lang="en"><kwd>primary mediastinum herm cell tumor</kwd><kwd>non-seminomatous germ-cell tumors</kwd><kwd>embryonal carcinoma</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">Manecksha R.P., Fitzpatrick J.M. Epidemiology of Epidemiology of testicular cancer // BJU International. 2009. Nov; Vol. 104. P. 1329–1333. DOI: 10.1111/j.1464-410X.2009.08854.x. PMID: 19840008.</mixed-citation><mixed-citation xml:lang="en">Manecksha R.P., Fitzpatrick J.M. Epidemiology of Epidemiology of testicular cancer // BJU International. 2009. 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