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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">surgonco</journal-id><journal-title-group><journal-title xml:lang="ru">Креативная хирургия и онкология</journal-title><trans-title-group xml:lang="en"><trans-title>Creative surgery and oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2076-3093</issn><issn pub-type="epub">2307-0501</issn><publisher><publisher-name>Башкирский государственный медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24060/2076-3093-2025-15-4-384-389</article-id><article-id custom-type="elpub" pub-id-type="custom">surgonco-1151</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>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group></article-categories><title-group><article-title>Муцинозная аденокарцинома правого легкого у ребенка: клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Mucinous Adenocarcinoma of the Right Lung in a Child: Clinical case</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-6298-3298</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кобелев</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kobelev</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кобелев Максим Владимирович — к.м.н., хирургическое торакальное отделение № 1, кафедра респираторной медицины с курсом рентгенологии</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Maksim V. Kobelev — Cand. Sci. (Med.), Surgery Thoracic Unit No. 1, Department of Respiratory Medicine with a course in Radiology</p><p>Tyumen </p></bio><email xlink:type="simple">M.Kobelev@tokb.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/0000-0002-7679-0307</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Машкина</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mashkina</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Машкина Наталья Анатольевна — хирургическое торакальное отделение № 2</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Natalia A. Mashkina — Surgery Thoracic Unit No. 2</p><p>Tyumen </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-8804-2279</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Иван Борисович — к.м.н., хирургическое торакальное отделение № 1, кафедра респираторной медицины с курсом рентгенологии</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Ivan B. Popov — Cand. Sci. (Med.), Surgery Thoracic Unit No. 1, Department of Respiratory Medicine with a course in Radiology</p><p>Tyumen </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2548-4331</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кобелева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kobeleva</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кобелева Анна Сергеевна — хирургическое торакальное отделение № 1</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Anna S. Kobeleva — Surgery Thoracic Unit No. 1</p><p>Tyumen </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-2761-0339</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурый</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Buryi</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бурый Денис Валерьевич — хирургическое торакальное отделение № 2</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Denis V. Buryi — Surgery Thoracic Unit No. 2</p><p>Tyumen </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-3797-8426</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абгарян</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Abgaryan</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абгарян Артем Самвелович — хирургическое торакальное отделение № 1</p><p>Тюмень</p></bio><bio xml:lang="en"><p>Artem S. Abgaryan — Surgery Thoracic Unit No. 1</p><p>Tyumen </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Областная клиническая больница № 1 ; Тюменский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Clinical Hospital No. 1 ; Tyumen State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Областная клиническая больница № 1</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Clinical Hospital No. 1</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2025</year></pub-date><volume>15</volume><issue>4</issue><fpage>384</fpage><lpage>389</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кобелев М.В., Машкина Н.А., Попов И.Б., Кобелева А.С., Бурый Д.В., Абгарян А.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Кобелев М.В., Машкина Н.А., Попов И.Б., Кобелева А.С., Бурый Д.В., Абгарян А.С.</copyright-holder><copyright-holder xml:lang="en">Kobelev M.V., Mashkina N.A., Popov I.B., Kobeleva A.S., Buryi D.V., Abgaryan A.S.</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.surgonco.ru/jour/article/view/1151">https://www.surgonco.ru/jour/article/view/1151</self-uri><abstract><p>Введение. Рак легкого у детей — крайне редкая патология, встречающаяся менее чем в 0,2 % случаев всех детских опухолей. Наиболее часто выявляются аденокарцинома и карциноидные опухоли, которые, как показывают последние мультицентровые исследования, нередко диагностируются уже на поздних стадиях из-за отсутствия специфической симптоматики и трудностей дифференциальной диагностики. Материалы и методы. В статье представлен клинический случай инвазивной муцинозной аденокарциномы легкого у ребенка 9 лет. Результаты. Опухоль выявлена случайно при выполнении компьютерной томографии грудной клетки. Изменения в легких были расценены как деструктивная пневмония, по поводу которой пациент длительно получал лечение, на фоне которого наступило клиническое улучшение. Однако при контрольной компьютерной томографии была выявлена отрицательная динамика. Учитывая локализацию изменений в одной доле, после проведенной предоперационной подготовки пациенту была выполнена верхняя лобэктомия с систематической медиастинальной лимфодиссекцией. Гистологически установлен диагноз: инвазивная муцинозная аденокарцинома легкого. Специальное противоопухолевое лечение не проводилось. Пациент находится под динамическим наблюдением без признаков рецидива. Обсуждение. Данный клинический случай показывает проблемы диагностики рака легкого у детей, а также проблемы стадирования заболевания и определения тактики лечения. Заключение. Подчеркивается необходимость разработки четких клинических рекомендаций по диагностике и лечению рака легкого у детей с учетом анатомо-физиологических особенностей детского организма.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Lung cancer in children is an extremely rare pathology occurring in less than 0.2 % of all childhood tumors. The most frequently detected tumors are adenocarcinoma and carcinoid tumors, which are often diagnosed at late stages due to the lack of specific symptoms and difficulties in differential diagnosis. Materials and methods. The article presents a clinical case of invasive mucinous adenocarcinoma of the lung in a 9-year-old child. Results. The tumor was incidentally found during a chest computed tomography scan. Changes in the lungs were assessed as destructive pneumonia, for which the patient received long-term treatment resulted in clinical improvement. However, a control computed tomography scan revealed negative dynamics. Given the localization of changes in one lobe, the patient underwent an upper lobectomy with systematic mediastinal lymph node dissection after preoperative preparation. Histologically, the diagnosis was invasive mucinous adenocarcinoma of the lung. No specific antitumor treatment was administered. The patient is currently under dynamic observation without signs of relapse. Discussion. This clinical case demonstrates the problems of diagnosing lung cancer in children, as well as the problems of staging the disease and determining treatment tactics. Conclusion. The performed study emphasizes the need to develop clear clinical guidelines for the diagnosis and treatment of lung cancer in children, taking into account anatomical and physiological characteristics of the child’s body.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рак легкого у детей</kwd><kwd>муцинозная аденокарцинома легкого</kwd><kwd>дети</kwd><kwd>компьютерная томография</kwd><kwd>диагностические трудности</kwd><kwd>торакотомия</kwd><kwd>лобэктомия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lung cancer in children</kwd><kwd>mucinous adenocarcinoma of the lung</kwd><kwd>children</kwd><kwd>computed tomography</kwd><kwd>diagnosis difficulties</kwd><kwd>thoracotomy</kwd><kwd>lobectomy</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">Заболотских Т.В., Бабенко А.А., Григоренко Г.В., Медведева С.В., Харченко М.В. Клинический случай муцинозной инвазивной аденокарциномы легкого у подростка. Российский вестник перинатологии и педиатрии. 2025;70(3):95–9. DOI: 10.21508/1027-4065-2025-70-3-95-99</mixed-citation><mixed-citation xml:lang="en">Zabolotskikh T.V., Babenko A.A., Grigorenko G.V., Medvedeva S.V., Kharchenko M.V. Clinical case of mucinous invasive adenocarcinoma of the lung in an adolescent. Russian Bulletin of Perinatology and Pediatrics. 2025;70(3):95–9 (In Russ.). DOI: 10.21508/1027-4065-2025-70-3-95-99</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Chen Q., Cheng J., Wang L., Lv X., Hu J. Primary lung cancer in children and adolescents. J Cancer Res Clin Oncol. 2024;150(5):225. DOI: 10.1007/s00432-024-05750-1</mixed-citation><mixed-citation xml:lang="en">Chen Q., Cheng J., Wang L., Lv X., Hu J. Primary lung cancer in children and adolescents. J Cancer Res Clin Oncol. 2024;150(5):225. DOI: 10.1007/s00432-024-05750-1</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Abele M., Bajčiová V., Wright F., Behjati S., Voggel S., Schneider D.T., et al. Primary lung carcinoma in children and adolescents: An analysis of the European Cooperative Study Group on Paediatric Rare Tumours (EXPeRT). Eur J Cancer. 2022;175:19–30. DOI: 10.1016/j.ejca.2022.08.007</mixed-citation><mixed-citation xml:lang="en">Abele M., Bajčiová V., Wright F., Behjati S., Voggel S., Schneider D.T., et al. Primary lung carcinoma in children and adolescents: An analysis of the European Cooperative Study Group on Paediatric Rare Tumours (EXPeRT). Eur J Cancer. 2022;175:19–30. DOI: 10.1016/j.ejca.2022.08.007</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Chen W., Bai J., Fang Y., Wu D., Zhang B. Prognostic factors and surgical management in pediatric primary lung cancer: a retrospective cohort study using SEER data. Transl Pediatr. 2024;13(10):1671–83. DOI: 10.21037/tp-24-174</mixed-citation><mixed-citation xml:lang="en">Chen W., Bai J., Fang Y., Wu D., Zhang B. Prognostic factors and surgical management in pediatric primary lung cancer: a retrospective cohort study using SEER data. Transl Pediatr. 2024;13(10):1671–83. DOI: 10.21037/tp-24-174</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Balzer B.W.R., Loo C., Lewis C.R., Trahair T.N., Anazodo A.C. Adenocarcinoma of the Lung in Childhood and Adolescence: A Systematic Review. J Thorac Oncol. 2018;13(12):1832–41. DOI: 10.1016/j.jtho.2018.08.2020</mixed-citation><mixed-citation xml:lang="en">Balzer B.W.R., Loo C., Lewis C.R., Trahair T.N., Anazodo A.C. Adenocarcinoma of the Lung in Childhood and Adolescence: A Systematic Review. J Thorac Oncol. 2018;13(12):1832–41. DOI: 10.1016/j.jtho.2018.08.2020</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">De Martino L., Errico M.E., Ruotolo S., Cascone D., Chiaravalli S., Collini P., et al. Pediatric lung adenocarcinoma presenting with brain metastasis: a case report. J Med Case Rep. 2018;12(1):243. DOI: 10.1186/s13256-018-1781-1</mixed-citation><mixed-citation xml:lang="en">De Martino L., Errico M.E., Ruotolo S., Cascone D., Chiaravalli S., Collini P., et al. Pediatric lung adenocarcinoma presenting with brain metastasis: a case report. J Med Case Rep. 2018;12(1):243. DOI: 10.1186/s13256-018-1781-1</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Borgia P., Cafferata B., Paratore C., Anfigeno L., Conte A., Florio A., et al. Primary lung tumors in children: insights from a single-center case series. J Clin Med. 2025;14(7):2173. DOI: 10.3390/jcm14072173</mixed-citation><mixed-citation xml:lang="en">Borgia P., Cafferata B., Paratore C., Anfigeno L., Conte A., Florio A., et al. Primary lung tumors in children: insights from a single-center case series. J Clin Med. 2025;14(7):2173. DOI: 10.3390/jcm14072173</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Гумбатова Э.Д. Метастатическое поражение легких у детей с солидными опухолями: исторический экскурс. Российский журнал детской гематологии и онкологии. 2019;6(1):56–60. DOI: 10.17650/2311-1267-2019-6-1-56-60</mixed-citation><mixed-citation xml:lang="en">Gumbatova E.D. Metastatic lung disease in children with solid tumors: a historical excursion. Russian Journal of Pediatric Hematology аnd Oncology 2019;6(1):56–60 (In Russ.). DOI: 10.17650/2311-1267-2019-6-1-56-60</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Koh J., Jung E., Jang S.J., Kim D.K., Lee B.S., Kim K.S., et al. Case of mucinous adenocarcinoma of the lung associated with congenital pulmonary airway malformation in a neonate. Korean J Pediatr. 2018;61(1):30–4. DOI: 10.3345/kjp.2018.61.1.30</mixed-citation><mixed-citation xml:lang="en">Koh J., Jung E., Jang S.J., Kim D.K., Lee B.S., Kim K.S., et al. Case of mucinous adenocarcinoma of the lung associated with congenital pulmonary airway malformation in a neonate. Korean J Pediatr. 2018;61(1):30–4. DOI: 10.3345/kjp.2018.61.1.30</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Ge L., Wang L., Pei D. Pulmonary mucinous adenocarcinoma: An overview of pathophysiology and advancements in treatment. Heliyon. 2024;10(9):e28881. DOI: 10.1016/j.heliyon.2024.e28881</mixed-citation><mixed-citation xml:lang="en">Ge L., Wang L., Pei D. Pulmonary mucinous adenocarcinoma: An overview of pathophysiology and advancements in treatment. Heliyon. 2024;10(9):e28881. DOI: 10.1016/j.heliyon.2024.e28881</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Buettner R. Invasive mucinous adenocarcinoma: genetic insights into a lung cancer entity with distinct clinical behavior and genomic features. Mod Pathol. 2022;35(2):138–9. DOI: 10.1038/s41379-021-00945-0</mixed-citation><mixed-citation xml:lang="en">Buettner R. Invasive mucinous adenocarcinoma: genetic insights into a lung cancer entity with distinct clinical behavior and genomic features. Mod Pathol. 2022;35(2):138–9. DOI: 10.1038/s41379-021-00945-0</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Huang F., Wang H., Qiao R., Ganti A.K., Kudo Y., Zhang Y., et al. Prognostic analysis and development of a predictive model for pulmonary invasive mucinous adenocarcinoma. J Thorac Dis. 2025;17(7):5146–63. DOI: 10.21037/jtd-2025-755</mixed-citation><mixed-citation xml:lang="en">Huang F., Wang H., Qiao R., Ganti A.K., Kudo Y., Zhang Y., et al. Prognostic analysis and development of a predictive model for pulmonary invasive mucinous adenocarcinoma. J Thorac Dis. 2025;17(7):5146–63. DOI: 10.21037/jtd-2025-755</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zhou P., Zhaxi C., Jiang L. A unique case of pulmonary minimally invasive mucinous adenocarcinoma arising from atypical goblet cell hyperplasia in the bronchial epithelium of a 9-year-old girl. BMC Pediatr. 2025;25(1):333. DOI: 10.1186/s12887-025-05683-9</mixed-citation><mixed-citation xml:lang="en">Zhou P., Zhaxi C., Jiang L. A unique case of pulmonary minimally invasive mucinous adenocarcinoma arising from atypical goblet cell hyperplasia in the bronchial epithelium of a 9-year-old girl. BMC Pediatr. 2025;25(1):333. DOI: 10.1186/s12887-025-05683-9</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Türüt H., Demirag F., Gulhan E., Tastepe I. Primary pulmonary mucinous adenocarcinoma in a 15-year-old boy. Eur J Cardiothorac Surg. 2006;29(5):851–3. DOI: 10.1016/j.ejcts.2006.01.051</mixed-citation><mixed-citation xml:lang="en">Türüt H., Demirag F., Gulhan E., Tastepe I. Primary pulmonary mucinous adenocarcinoma in a 15-year-old boy. Eur J Cardiothorac Surg. 2006;29(5):851–3. DOI: 10.1016/j.ejcts.2006.01.051</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Бонцевич Р.А., Хамитова А.А., Данилова М.С., Завиткевич Г.И., Гаврилов П.В. Диффузная форма аденокарциномы под маской пневмонии. Актуальные проблемы медицины. 2025;48(2):134–45. DOI: 10.52575/2687-0940-2025-48-2-134-145</mixed-citation><mixed-citation xml:lang="en">Bontsevich R.A., Khamitova A.A., Danilova M.S., Zavitkevich G.I., Gavrilov P.V. Diffuse Form of Adenocarcinoma under the Guise of Pneumonia. Challenges in Modern Medicine. 2025;48(2):134–145 (In Russ.). DOI: 10.52575/2687-0940-2025-48-2-134-145.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Huo J.W., Huang X.T., Li X., Gong J.W., Luo T.Y., Li Q. Pneumonictype lung adenocarcinoma with different ranges exhibiting different clinical, imaging, and pathological characteristics. Insights Imaging. 2021;12(1):169. DOI: 10.1186/s13244-021-01114-2</mixed-citation><mixed-citation xml:lang="en">Huo J.W., Huang X.T., Li X., Gong J.W., Luo T.Y., Li Q. Pneumonictype lung adenocarcinoma with different ranges exhibiting different clinical, imaging, and pathological characteristics. Insights Imaging. 2021;12(1):169. DOI: 10.1186/s13244-021-01114-2</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang S., Yu X., Huang Y., Nie P., Deng Y., Mao N., et al. Pneumonic type invasive mucinous adenocarcinoma and infectious pneumonia: clinical and CT imaging analysis from multiple centers. BMC Pulm Med. 2022;22(1):460. DOI: 10.1186/s12890-022-02268-5</mixed-citation><mixed-citation xml:lang="en">Zhang S., Yu X., Huang Y., Nie P., Deng Y., Mao N., et al. Pneumonic type invasive mucinous adenocarcinoma and infectious pneumonia: clinical and CT imaging analysis from multiple centers. BMC Pulm Med. 2022;22(1):460. DOI: 10.1186/s12890-022-02268-5</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Yang Y., Huang R., Xiang L., Zeng J., Zhao W., Huang N. Invasive mucinous adenocarcinoma misdiagnosed as pneumonia: A case report. Exp Ther Med. 2023;25(4):168. DOI: 10.3892/etm.2023.11867</mixed-citation><mixed-citation xml:lang="en">Yang Y., Huang R., Xiang L., Zeng J., Zhao W., Huang N. Invasive mucinous adenocarcinoma misdiagnosed as pneumonia: A case report. Exp Ther Med. 2023;25(4):168. DOI: 10.3892/etm.2023.11867</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Zhu D., Zhang Q., Rui Z., Xu S. Pulmonary invasive mucinous adenocarcinoma mimicking pulmonary actinomycosis. BMC Pulm Med. 2022;22(1):181. DOI: 10.1186/s12890-022-01971-7</mixed-citation><mixed-citation xml:lang="en">Zhu D., Zhang Q., Rui Z., Xu S. Pulmonary invasive mucinous adenocarcinoma mimicking pulmonary actinomycosis. BMC Pulm Med. 2022;22(1):181. DOI: 10.1186/s12890-022-01971-7</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Лактионов К.К., Артамонова Е.В., Борисова Т.Н., Бредер В.В., Бычков Ю.М., Владимирова Л.Ю. и др. Злокачественное новообразование бронхов и легкого. 2021;23(3):369–402. DOI: 10.26442/18151434.2021.3.201048</mixed-citation><mixed-citation xml:lang="en">Laktionov K.K., Artamonova E.V., Borisova T.N., Breder V.V., Bychkov I.M., Vladimirova L.I., et al. Malignant neoplasm of the bronchi and lung: Russian clinical guidelines. Journal of Modern Oncology. 2021;23(3):369–402 (In Russ.). DOI: 10.26442/18151434.2021.3.201048</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>
