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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">126</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2012-0-4-10-18</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF HEAD AND NECK TUMORS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ ГОЛОВЫ И ШЕИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">SURGERY FOR TUMORS OF THE FOURTH VENTRICLE: THE CHARACTERISTICS OF ACCESSES AND THE ROLE OF ENDOSCOPIC TECHNIQUES</article-title><trans-title-group xml:lang="ru"><trans-title>ХИРУРГИЯ ОПУХОЛЕЙ IV ЖЕЛУДОЧКА ГОЛОВНОГО МОЗГА: ХАРАКТЕРИСТИКА ДОСТУПОВ И РОЛЬ ЭНДОСКОПИЧЕСКИХ ТЕХНОЛОГИЙ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Karakhan</surname><given-names>V. B.</given-names></name><name xml:lang="ru"><surname>Карахан</surname><given-names>В. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>vkarakhan@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin Russian Cancer Research Center, Russian Academy of Medical Sciences, Moscow</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Российский онкологический научный центр им. Н.Н. Блохина» РАМН, Москва</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2012-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2012</year></pub-date><volume>2</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>10</fpage><lpage>18</lpage><history><date date-type="received" iso-8601-date="2015-04-19"><day>19</day><month>04</month><year>2015</year></date><date date-type="accepted" iso-8601-date="2015-04-19"><day>19</day><month>04</month><year>2015</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2012, Karakhan V.B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2012, Карахан В.Б.</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="en">Karakhan V.B.</copyright-holder><copyright-holder xml:lang="ru">Карахан В.Б.</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/126">https://ogsh.abvpress.ru/jour/article/view/126</self-uri><abstract xml:lang="en"><p>The use of current accesses to the tumors of the fourth ventricle, which fill and compress from the outside its cavity, was assessed in 28 patients. Original associated endomicrosurgical techniques were used. Two groups and five topographic types of fourth ventricle tumors are identified. Basic accesses — telovelar and supracerebellar — eliminate the necessity of dissecting the vermis cerebelli. The key endoscopic technique is to provide a simultaneous survey of the lower and upper poles of a tumor during its removal. The technique of trochlear removal of metastatic nodes from the fourth ventricle is shown. The benefits of endoscopic techniques are to early examine the vulnerable vascular and neural structures blocked by a tumor at the access step; to reduce the volume of an access itself and the traction of cerebellar and truncal structures; to completely survey the Sylvian aqueduct without additionally displacing or dissecting the vermis cerebelli; to maintain optical sharpness within sight of differently remote microstructures. Overall, incorporation of the endoscopic method realizes the principle of mini-invasive neurosurgery. </p></abstract><trans-abstract xml:lang="ru"><p/></trans-abstract><kwd-group xml:lang="en"><kwd>tumors of the fourth ventricle</kwd><kwd>neuroendoscopy</kwd><kwd>telovelar access</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>опухоли IV желудочка</kwd><kwd>нейроэндоскопия</kwd><kwd>теловелярный доступ</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. Шелия Р.Н. Опухоли желудочковой системы головного мозга. Л.: Медицина, 1973. 263 с.</mixed-citation><mixed-citation xml:lang="ru">Шелия Р.Н. Опухоли желудочковой системы головного мозга. Л.: Медицина, 1973. 263 с.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">2. Григорян Ю.А., Ситников А.Р. 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