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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2018-4-59-64</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-998</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="en"><subject>ORIGINAL INVESTIGATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ И МЕТОДИКИ</subject></subj-group></article-categories><title-group><article-title>Immunophenotypic characteristics of brain metastases</article-title><trans-title-group xml:lang="ru"><trans-title>Иммунофенотипическая характеристика метастазов головного мозга</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>Демяшкин</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Demyashkin</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорий Александрович Демяшкин</p><p>119146, Москва, Комсомольский проспект, 13а; 119991, Москва, Трубецкая ул., 8, стр. 2</p></bio><bio xml:lang="en"><p>Aleksandrovich Demashkin</p><p>13a, Komsomolsky Prospect, Moscow 119146; 8, Trubetskaya St., Build. 2, Moscow 119991</p></bio><email xlink:type="simple">dr.dga@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>Шаламова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shalamova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, Трубецкая ул., 8, стр. 2</p></bio><bio xml:lang="en"><p>8, Trubetskaya St., Build. 2, Moscow 119991</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитин</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>125047, Москва, 4-я Тверская-Ямская ул., 16</p></bio><bio xml:lang="en"><p>16, Fourth Tverskaya-Yamskaya St., Moscow 125047</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богомолов</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogomolov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, Москва, Трубецкая ул., 8, стр. 2</p></bio><bio xml:lang="en"><p>8, Trubetskaya St., Build. 2, Moscow 119991</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «9 Лечебно-диагностический центр» Минобороны России; ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова (Сеченовский университет)» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Medical Diagnostic Center Nine, Ministry of Defense of Russia; I.M. Sechenov First Moscow State Medical University (Sechenov University),  Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова (Сеченовский университет)» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.M. Sechenov First Moscow State Medical University (Sechenov University),  Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГАУ «Национальный медицинский исследовательский центр нейрохирургии им. акад. Н.Н. Бурденко» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Acad. N.N. Burdenko National Research and Practical Center for Neurosurgery, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>14</day><month>12</month><year>2018</year></pub-date><volume>10</volume><issue>4</issue><fpage>59</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Demyashkin G.A., Shalamova E.A., Nikitin P.V., Bogomolov S.N., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Демяшкин Г.А., Шаламова Е.А., Никитин П.В., Богомолов С.Н.</copyright-holder><copyright-holder xml:lang="en">Demyashkin G.A., Shalamova E.A., Nikitin P.V., Bogomolov S.N.</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://nnp.ima-press.net/nnp/article/view/998">https://nnp.ima-press.net/nnp/article/view/998</self-uri><abstract><p>Up to 15% of patients with secondary brain tumors of unknown primary are admitted to a neurosurgery department. Identification of a primary tumor site on the basis of surgical material immunophenotyping in routine clinical practice has a significant potential; however, this requires systematization.</p><sec><title>Objective</title><p>Objective: to detect the primary focus of brain carcinoma. Patients and methods.Surgical specimens from 7 patients with brain tumor of unknown primary were investigated using light optical microscopy and an immunohistochemical (IHC) panel including EMA, CK AE1/3, CK7, CK5/6, GFAP, S-100, Vimentin, p63, TTF-1, Uroplakin III (UPIII), CDX2, and Her2/neu.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. A study using the IHC panel made it possible to obtain the following tumor phenotypes in the patients: CK5/6+, p63+, CK7+, UPIII+ (urothelial cancer) (n=3); CK5/6-, CK7+, TTF-1+, CDX2- (lung adenocarcinoma) (n=2); CK5/6+, p63+, CK7-, UPIII, TTF-1- (squamous cell carcinoma) (n=1), and  CK5/6-, CK7+, TTF-1-, CDX2-, Her2/neu+ (breast cancer) (n=1). Evidence of the primary focus of the tumors was subsequently confirmed by instrumental techniques in all cases when cancer of the breast, lung and urinary system was directly sought. The findings were used to elaborate an algorithm for the differential diagnostic immunophenotyping of brain metastases.</p></sec><sec><title>Conclusion</title><p>Conclusion. The primary focus of brain carcinoma was detected in all cases on the proposed IHC panel. The systematized algorithm for differential diagnostic immunophenotyping can be used in clinical practice.</p></sec></abstract><trans-abstract xml:lang="ru"><p>До 15% пациентов с вторичными опухолями головного мозга поступают в нейрохирургическое отделение без выявленного первичного очага. Определение локализации первичной опухоли на основании иммунофенотипирования операционного материала в рутинной клинической практике имеет значительный потенциал, однако требует систематизации.</p><p>Цель исследования – выявление первичного очага карциномы головного мозга.</p><sec><title>Пациенты и методы</title><p>Пациенты и методы. Операционный материал 7 пациентов с опухолью головного мозга без данных о первичном очаге исследован с помощью светооптической микроскопии и иммуногистохимической (ИГХ) панели, включающей EMA, CK AE1/3, CK7, CK5/6, GFAP, S-100, Vimentin, p63, TTF-1, Uroplakin III (UPIII), CDX2 и Her2/neu.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. На основании исследования с использованием ИГХ-панели были получены следующие фенотипы опухолей: 3 – CK5/6+, p63+, CK7+, UPIII+ (уротелиальный рак); 2  – CK5/6-, CK7+, TTF-1+, CDX2- (аденокарцинома легкого); 1 – CK5/6+, p63+, CK7, UPIII-, TTF-1- (плоскоклеточный рак) и 1– CK5/6-, CK7+, TTF-1-, CDX2-, Her2/neu+ (рак молочной железы). Впоследствии данные о первичном очаге были подтверждены во всех случаях инструментальными методами при направленном поиске рака молочной железы, легкого и мочевыделительной системы. На основании полученных результатов был разработан алгоритм дифференциально-диагностического иммунофенотипирования метастазов головного мозга.</p></sec><sec><title>Заключение</title><p>Заключение. Первичный очаг карциномы головного мозга был определен во всех случаях на основании предложенной ИГХ-панели. Систематизированный алгоритм дифференциально-диагностического иммунофенотипирования можно использовать в клинической практике.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>метастазы без выявленного первичного очага</kwd><kwd>вторичная опухоль</kwd><kwd>головной мозг</kwd><kwd>иммунофенотипирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metastases of unknown primary</kwd><kwd>secondary tumor</kwd><kwd>brain</kwd><kwd>immunophenotyping</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">Davis FG, Dolecek TA, McCarthy BJ, et al. Toward determining the lifetime occurrence of metastatic brain tumors estimated from 2007 United States cancer incidence data. Neuro Oncol. 2012 Sep;14(9):1171-7. doi: 10.1093/neuonc/nos152. Epub 2012 Aug 16.</mixed-citation><mixed-citation xml:lang="en">Davis FG, Dolecek TA, McCarthy BJ, et al. 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