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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">spractice</journal-id><journal-title-group><journal-title xml:lang="ru">Хирургическая практика</journal-title><trans-title-group xml:lang="en"><trans-title>Surgical practice (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-2427</issn><publisher><publisher-name>АНО "Консорциум "Медицинская техника"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.5922/2223-2427-2024-9-3-6</article-id><article-id custom-type="elpub" pub-id-type="custom">spractice-495</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 НАБЛЮДЕНИЯ</subject></subj-group></article-categories><title-group><article-title>Эндоскопическая диагностика меланомы</article-title><trans-title-group xml:lang="en"><trans-title>Endoscopic diagnosis of melanoma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-9802-1119</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кувшинов</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuvshinov</surname><given-names>Yu. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрий Павлович Кувшинов, доктор медицинских наук, профессор, ведущий научный сотрудник</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Prof. Yuri P. Kuvshinov, Endoscopist</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">kuv_50@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0868-3948</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крыловецкая</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krylovetskaya</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Александровна Крыловецкая, кандидат медицинских наук, врач-эндоскопист</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Maria A. Krylovetskaya, Endoscopist</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">mariyakrilo@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9372-5195</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богданова</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanova</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ангелина Олеговна Богданова, врач-эндоскопист</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Angelina O. Bogdanova, Endoscopist</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">linakr@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3852-3969</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козлов</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlov</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николай Александрович Козлов, кандидат медицинских наук, врач-патологоанатом</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Nikolay A. Kozlov, Pathologist</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">newbox.13@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3495-5521</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комаров</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Komarov</surname><given-names>I. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Геннадьевич Комаров, доктор медицинских наук, профессор, ведущий научный сотрудник, врач-онколог</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Prof. Igor G. Komarov, Oncologist, Leading researcher</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">komarovig@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-3607-7787</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комарова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Komarova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Комарова Валерия Алексеевна, врач-эндоскопист</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Valeria A. Komarova, Endoscopist</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">c.valeriya2017@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7025-970X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карасев</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karasev</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иван Александрович Карасев, кандидат медицинских наук, заведующий эндоскопическим отделением</p><p>115478, Россия, Каширское шоссе, 24</p></bio><bio xml:lang="en"><p>Ivan A. Karasev, Head of the Department of Endoscopy</p><p>24, Kashirskoye Shosse, Moscow, 115478</p></bio><email xlink:type="simple">ronc-karasev@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр онкологии имени Н. Н. Блохина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. N. Blokhin National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>19</day><month>09</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>60</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кувшинов Ю.П., Крыловецкая М.А., Богданова А.О., Козлов Н.А., Комаров И.Г., Комарова В.А., Карасев И.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Кувшинов Ю.П., Крыловецкая М.А., Богданова А.О., Козлов Н.А., Комаров И.Г., Комарова В.А., Карасев И.А.</copyright-holder><copyright-holder xml:lang="en">Kuvshinov Y.P., Krylovetskaya M.A., Bogdanova A.O., Kozlov N.A., Komarov I.G., Komarova V.A., Karasev I.A.</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.spractice.ru/jour/article/view/495">https://www.spractice.ru/jour/article/view/495</self-uri><abstract><p>Актуальность. Несмотря на то что меланома кожи относится к числу опухолей визуальных локализаций, ее современную диагностику нельзя считать удовлетворительной. Меланома кожи отличается чрезвычайным разнообразием клинической картины, вариабельностью течения неопластического процесса.Цель. Проанализировать собственный опыт диагностики метастатической меланомы желудочно-кишечного тракта.Материалы и методы. В работе представлены данные эндоскопического и морфологического исследований 29 пациентов, которым диагноз метастатической меланомы с поражением желудочно-кишечного тракта установлен на базе эндоскопического отделения Национального медицинского исследовательского центра онкологии им. Н. Н. Блохина.Результаты. Среди пациентов было 12 (41,3 %) мужчин и 17 (58,6 %) женщин, средний возраст которых составил 50 и 53 года соответственно. Большинство метастатических поражений ЖКТ протекало бессимптомно, лишь у 4 (13,8 %) пациентов заболевание сопровождалось жалобами на затруднение прохождения пищи, в двух случаях (6,9 %) были выявлены эпизоды желудочно-кишечного кровотечения, в семи (24,1 %) источника метастазирования установлено не было. К особенностям проявления метастатических меланом следует отнести нередкое сочетанное поражение пищевода, желудка и двенадцатиперстной кишки. В редких случаях встречается сочетание пигментной и беспигментной форм меланомы.Заключение. Ввиду высокого потенциала регионарного метастазирования, способности к диссеминации по коже, множественного метастазирования в совокупности с возможным отсутствием местного роста, а также бессимптомного течения в органах желудочно-кишечного тракта в стандарт диагностики необходимо включать весь спектр эндоскопических возможностей: эзофагогастродуоденоскопию и колоноскопию с применением всех уточняющих методов осмотра (узкоспектральный режим, осмотр в режиме увеличения, а также их сочетание), взятие биопсийного материала для морфологического, цитологического и иммунногистохимического исследований</p></abstract><trans-abstract xml:lang="en"><p>Background. Although skin melanoma is a tumour which can be localised visually, its current diagnosis remains unsatisfactory. Skin melanoma exhibits an extremely diverse clinical presentation and a highly variable progression of the neoplastic process.Aim. To analyze our experience in diagnosing metastatic melanoma of the gastrointestinal tract.Materials and methods. The paper presents data from endoscopic and morphological studies of 29 patients who were diagnosed with metastatic melanoma with lesions of the gastrointestinal tract at the Department of Endoscopy the N. Blokhin National Medical Research Centre of Oncology.Results. Among the patients there were 12 (41.3 %) men and 17 (58.6 %) women, whose average age was 50 and 53 years, respectively, the majority of metastatic lesions of the gastrointestinal tract were asymptomatic, only 4 (13.8 %) patients had the disease accompanied by complaints such as difficulty passing food, in 2 cases (6.9 %) episodes of gastrointestinal bleeding were detected. In 7 (24.1 %) cases, the source of metastasis was not identified. The features of the manifestation of metastatic melanomas include the frequently combined lesions of the oesophagus, stomach and duodenum. In rare cases, there is a combination of pigmented and pigmented forms of melanoma.Conclusion. Given the high potential for regional metastasis, the ability of melanoma to disseminate through the skin, the occurrence of multiple metastases even in the absence of local growth, and its often asymptomatic progression in gastrointestinal organs, the diagnostic protocol should encompass the full spectrum of endoscopic techniques. This includes esophagogastroduodenoscopy and colonoscopy, utilizing advanced methods such as narrow-band imaging, magnification, or a combination of both. Biopsy samples should be taken for morphological, cytological, and immunological analysis. Additionally, comprehensive diagnostic methods such as immunoscopy should be employed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>меланома</kwd><kwd>метастаз меланомы</kwd><kwd>верхние отделы желудочно-кишечного тракта</kwd><kwd>эндоскопическая диагностика</kwd><kwd>эзофагогастродуоденоскопия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>melanoma</kwd><kwd>melanoma metastasis</kwd><kwd>upper gastrointestinal tract</kwd><kwd>endoscopic diagnosis</kwd><kwd>esophagogastroduodenoscopy</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">Блинов Н. Н., Константинова М. М. Меланома кожи. Факторы риска и прогноза. Onconews. 2004;(4):2—4.</mixed-citation><mixed-citation xml:lang="en">Blinov NN, Konstantinova MM. Melanoma of the skin. Risk and prognosis factors. Onconews. 2004;(4):2—4 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Каприн О. В., Старинский В. В., Петрова Г. В. Злокачественные новообразования в России в 2021 году (заболеваемость и смертность). М., МНИОИ им. П. А. Герцена — филиал ФГБУ «НМИРЦ» Минздрава России. 2021.</mixed-citation><mixed-citation xml:lang="en">Kaprin OV, Starinsky VV, Petrova GV. Malignant neoplasms in Russia in 2021 (morbidity and mortality). М., National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation. 2021 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Nambisan RN. Early metastatic patterns and survival in malignant melanoma. J. Surg. Oncol. 1987;34(4):248—252. https://doi.org/10.1002/jso.2930340407</mixed-citation><mixed-citation xml:lang="en">Nambisan RN. Early metastatic patterns and survival in malignant melanoma. J. Surg. Oncol. 1987;34(4):248—252. https://doi.org/10.1002/jso.2930340407</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Branisteanu DC, Bogdanici CM, Branisteanu DE, Maranduca MA, Zemba M, Balta F, Branisteanu CI, Moraru AD. Uveal melanoma diagnosis and current treatment options (Review). Exp Ther Med. 2021 Dec;22(6):1428. https://doi.org/10.3892/etm.2021.10863</mixed-citation><mixed-citation xml:lang="en">Branisteanu DC, Bogdanici CM, Branisteanu DE, Maranduca MA, Zemba M, Balta F, Branisteanu CI, Moraru AD. Uveal melanoma diagnosis and current treatment options (Review). Exp Ther Med. 2021 Dec;22(6):1428. https://doi.org/10.3892/etm.2021.10863</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Ihde JK, Coit DG. Melanoma metastatic to stomach, small bowel, or colon. American Journal of Surgery. 1991 Sep;162(3):208—211. https://doi.org/10.1016/0002-9610(91)90070-t</mixed-citation><mixed-citation xml:lang="en">Ihde JK, Coit DG. Melanoma metastatic to stomach, small bowel, or colon. American Journal of Surgery. 1991 Sep;162(3):208—211. https://doi.org/10.1016/0002-9610(91)90070-t</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Reintgen DS, Thompson W, Garbutt J, Seigler HF. Radiologic, endoscopic, and surgical considerations of melanoma metastatic to the gastrointestinal tract. Surgery. 1984 Jun;95(6):635—639.</mixed-citation><mixed-citation xml:lang="en">Reintgen DS, Thompson W, Garbutt J, Seigler HF. Radiologic, endoscopic, and surgical considerations of melanoma metastatic to the gastrointestinal tract. Surgery. 1984 Jun;95(6):635—639.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kohoutova D, Worku D, Aziz H, Teare J, Weir J, Larkin J. Malignant Melanoma of the Gastrointestinal Tract: Symptoms, Diagnosis, and Current Treatment Options. Cells. 2021 Feb 5;10(2):327. https://doi.org/10.3390/cells10020327</mixed-citation><mixed-citation xml:lang="en">Kohoutova D, Worku D, Aziz H, Teare J, Weir J, Larkin J. Malignant Melanoma of the Gastrointestinal Tract: Symptoms, Diagnosis, and Current Treatment Options. Cells. 2021 Feb 5;10(2):327. https://doi.org/10.3390/cells10020327</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Namikawa T, Hanazaki K. Clinicopathological features and treatment outcomes of metastatic tumors in the stomach. Surg Today. 2014 Aug;44(8):1392—1399. https://doi.org/10.1007/s00595-013-0671-9</mixed-citation><mixed-citation xml:lang="en">Namikawa T, Hanazaki K. Clinicopathological features and treatment outcomes of metastatic tumors in the stomach. Surg Today. 2014 Aug;44(8):1392—1399. https://doi.org/10.1007/s00595-013-0671-9</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Vukmirovic F, Vukmirovic M, Vukmirovic I. Multiple Simultaneos Metastases of Malignant Melanoma in the Stomach, Small and Large Intestine. Macedonian Journal of Medical Sciences. 2013 Mar 15;6(1):56—58. https://doi.org/10.3889/MJMS.1857-5773.2012.0269</mixed-citation><mixed-citation xml:lang="en">Vukmirovic F, Vukmirovic M, Vukmirovic I. Multiple Simultaneos Metastases of Malignant Melanoma in the Stomach, Small and Large Intestine. Macedonian Journal of Medical Sciences. 2013 Mar 15;6(1):56—58. https://doi.org/10.3889/MJMS.1857-5773.2012.0269</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Поляков В. Г., Шишков Р. В. Клинические рекомендации по диагностике и лечению меланомы у детей и подростков. Общероссийский союз общественных объединений ассоциация онкологов России проект. 2014.</mixed-citation><mixed-citation xml:lang="en">Polyakov VG, Shishkov RV. Clinical guidelines for diagnosis and treatment of melanoma in children and adolescents. All-Russian Union of Public Associations Association of Oncologists of Russia project. 2014 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Пирогов С. С., Соколов В. В., Каприн А. Д., Соколов Д. В., Волченко Н. Н., Карпова Е. С., Сухин Д. Г., Погорелов Н. Н., Зайцев А. М. Метастатическое поражение желудка при меланоме кожи: возможности мультимодальной эндоскопической диагностики. Экспериментальная и клиническая гастроэнтерология. 2017;8(144):79—86.</mixed-citation><mixed-citation xml:lang="en">Pirogov SS, Sokolov VV, Kaprin AD, Sokolov DV, Volchenko NN, Karpova ES, Sukhin DG, Pogorelov NN, Zaitsev AM. Metastatic gastric damage in skin melanoma: possibilities of multimodal endoscopic diagnostics. Experimental and clinical gastroenterology. 2017;8(144):79—86 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Bobos M. Histopathologic classification and prognostic factors of melanoma: a 2021 update. Ital J Dermatol Venerol. 2021 Jun;156(3):300—321. https://doi.org/10.23736/S2784-8671.21.06958-3</mixed-citation><mixed-citation xml:lang="en">Bobos M. Histopathologic classification and prognostic factors of melanoma: a 2021 update. Ital J Dermatol Venerol. 2021 Jun;156(3):300—321. https://doi.org/10.23736/S2784-8671.21.06958-3</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Patel JK, Didolkar MS, Pickren JW, Moore RH. Metastatic pattern of malignant melanoma. A study of 216 autopsy cases. Am J Surg. 1978 Jun;135(6):807—810. https://doi.org/10.1016/0002-9610(78)90171-x</mixed-citation><mixed-citation xml:lang="en">Patel JK, Didolkar MS, Pickren JW, Moore RH. Metastatic pattern of malignant melanoma. A study of 216 autopsy cases. Am J Surg. 1978 Jun;135(6):807—810. https://doi.org/10.1016/0002-9610(78)90171-x</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Marak JR, Kumar T, Dwivedi S, Verma S. Primary malignant melanoma of the small bowel: A case report. Radiol Case Rep. 2024 Jan 6;19(3):1215—1221. https://doi.org/10.1016/j.radcr.2023.12.005</mixed-citation><mixed-citation xml:lang="en">Marak JR, Kumar T, Dwivedi S, Verma S. Primary malignant melanoma of the small bowel: A case report. Radiol Case Rep. 2024 Jan 6;19(3):1215—1221. https://doi.org/10.1016/j.radcr.2023.12.005</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Wang S, Ling L, Xu C, Tang G. Primary malignant melanoma of the small intestine. Am J Med Sci. 2022 Nov;364(5):e12—e14. https://doi.org/10.1016/j.amjms.2022.06.014</mixed-citation><mixed-citation xml:lang="en">Wang S, Ling L, Xu C, Tang G. Primary malignant melanoma of the small intestine. Am J Med Sci. 2022 Nov;364(5):e12—e14. https://doi.org/10.1016/j.amjms.2022.06.014</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Marone U, Caracò C, Losito S, Daponte A, Chiofalo MG, Mori S, Cerra R, Pezzullo l, Mozzillo N. Laparoscopic cholecystectomy for melanoma metastatic to the gallbladder: is it an adequate surgical procedure? Report of a case and review of the literature. World J Surg Oncol. 2007;(5):141. https://doi.org/10.1186/1477-7819-5-141</mixed-citation><mixed-citation xml:lang="en">Marone U, Caracò C, Losito S, Daponte A, Chiofalo MG, Mori S, Cerra R, Pezzullo l, Mozzillo N. Laparoscopic cholecystectomy for melanoma metastatic to the gallbladder: is it an adequate surgical procedure? Report of a case and review of the literature. World J Surg Oncol. 2007;(5):141. https://doi.org/10.1186/1477-7819-5-141</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
