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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">nid</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология и диализ</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology and Dialysis</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1680-4422</issn><issn pub-type="epub">2618-9801</issn><publisher><publisher-name>Российское диализное общество</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.28996/2618-9801-2025-3-333-339</article-id><article-id custom-type="elpub" pub-id-type="custom">nid-3880</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>ШКОЛА НЕФРОЛОГА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EDUCATIONAL MATERIALS</subject></subj-group></article-categories><title-group><article-title>Редкий случай сочетанного поражения почек при нейрофиброматозе 2 типа</article-title><trans-title-group xml:lang="en"><trans-title>A rare case of combined kidney damage in a patient with neurofibromatosis type 2</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0402-8348</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Столяревич</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Stolyarevich</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Столяревич Екатерина Сергеевна – д-р мед. наук, врач патологоанатомического отделения ГБУЗ «МКНИЦ Больница 52 Департамента здравоохранения г. Москвы»; проф. кафедры нефрологии ФПДО ФГБОУ ВО «РосУниМед» Минздрава России.</p><p>123182, Москва, ул. Пехотная, д. 3; 127006, Москва, ул. Долгоруковская, д. 4</p></bio><bio xml:lang="en"><p>Ekaterina S. Stolyarevich.</p><p>3, Pekhotnaya str., Moscow, 123182; 4, Dolgorukovskaya, Moscow, 127473</p></bio><email xlink:type="simple">Stolyarevich@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/0000-0001-5094-1261</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Майоров</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mayorov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Майоров Василий Владимирович – заведующий нефрологическим отделением ГБУЗ «ГКБ им. С.С. Юдина ДЗМ».</p><p>115446, Москва, Коломенский проезд, д. 4</p></bio><bio xml:lang="en"><p>Vasily V. Mayjorov.</p><p>4, Kolomensky drive, Moscow, 115446</p></bio><email xlink:type="simple">vasso88-88@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0604-9521</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стариков</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Starikov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стариков Дмитрий Валерьевич – врач патологоанатомического отделения ГБУЗ МКНИЦ “Больница 52” Департамента здравоохранения г. Москвы».</p><p>123182, Москва, ул. Пехотная, д. 3</p></bio><bio xml:lang="en"><p>Dmitrii V. Starikov.</p><p>3, Pekhotnaya str., Moscow, 123182</p></bio><email xlink:type="simple">dmitrij.starikov.6991@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ «Московский клинический научно-исследовательский центр Больница 52 Департамента здравоохранения города Москвы»; ФГБОУ ВО «Российский университет медицины» МЗ РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Clinical Research Center «Hospital 52» of the Moscow Healthcare Department; Russian university of medicine, Chair of Nephrology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУЗ «ГКБ им. С.С. Юдина ДЗМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>S.S. Yudin City Clinical Hospital, Moscow Healthcare Department</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГБУЗ «Московский клинический научно-исследовательский центр Больница 52 Департамента здравоохранения города Москвы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Clinical Research Center «Hospital 52» of the Moscow Healthcare Department</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>04</day><month>10</month><year>2025</year></pub-date><volume>27</volume><issue>3</issue><fpage>333</fpage><lpage>339</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Столяревич Е.С., Майоров В.В., Стариков Д.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Столяревич Е.С., Майоров В.В., Стариков Д.В.</copyright-holder><copyright-holder xml:lang="en">Stolyarevich E.S., Mayorov V.V., Starikov D.V.</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://journal.nephro.ru/jour/article/view/3880">https://journal.nephro.ru/jour/article/view/3880</self-uri><abstract><p>Нефрофиброматоз 2 типа (НФ2) – редкое аутосомно-доминантное заболевание, характеризующееся образованием множественных опухолей в центральной и периферической нервной системе. Поражение почек с формированием специфических склерозирующих перитубуллярных узелков (СПТУ) протекает как правило субклинически и описано лишь в единичных случаях, преимущественно по результатам аутопсийного исследования пациентов, умерших от НФ2. В статье представлен клинический случай сочетанного поражения почек (СПТУ в сочетании с IgA-нефропатией) у пациента 21 года с верифицированным диагнозом НФ2, получавшего терапию бевацизумабом. Поражение почек проявлялось персистирующим мочевым синдромом (протеинурия 1,0-3,6 г/с без формирования нефротического синдрома, эритроцитурия – до всех п/зр), развившимся через 14 месяцев от начала терапии. По данным биопсии наряду со специфическими склерозирующими перитубуллярными узелками была выявлена IgA-нефропатия с картиной фокального пролиферативного и склерозирующего гломерулонефрита. Трудности дифференциальной диагностики в данном случае определялись необходимостью оценить вклад каждого из процессов в прогрессирование заболевания, а также верифицировать природу гломерулонефрита, который мог быть как первичным, так и вторичным по отношению к основному заболеванию либо к проводимой терапии. Несмотря на возможную связь почечной патологии с проводимым лечением, полностью прекратить терапию бевацизумабом не удалось в связи с ухудшением клинических проявлений основного заболевания. На фоне продолжающегося лечения отмечалось прогрессирование поражения почек с постепенным снижением их функции (креатинин 128-303 мкмоль/л) и увеличения распространенности гломерулосклероза и интерстициального фиброза по данным повторной биопсии почек. Представленный случай является первым описанием сочетанной патологии почек у пациента с НФ2.</p></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background: neurofibromatosis type 2 (NF2) is a rare autosomal dominant disorder characterized by the formation of multiple tumors in the central and peripheral nervous system. Kidney involvement in NF2, including the formation of renal sclerosing peritubular nodules (RSPN), is uncommon and typically subclinical. Most of previous descriptions of this renal changes are based on the results of autopsy studies of patients who died from NF2.</p></sec><sec><title>Case presentation</title><p>Case presentation: we report a 21-year-old patient with a confirmed diagnosis of NF2 treated with bevacizumab who developed combined kidney injury. Renal involvement was detected during a routine follow-up 14 months after initiating bevacizumab therapy and manifested as persistent proteinuria (1.0-3.6 g/day) and significant hematuria. Kidney biopsy revealed a combined lesion consisting of RSPN and IgA nephropathy with focal proliferative and sclerosing features. Morphological interpretation required evaluating the contribution of each lesion to disease progression and determining whether the glomerulonephritis was primary or secondary to the underlying disorder or therapy. Despite the potential association of renal pathology with ongoing bevacizumab therapy, treatment could not be discontinued due to the worsening clinical manifestations of NF2.</p><p>Over time, renal function gradually declines (serum creatinine 128-303 mmol/L). Second kidney biopsy demonstrated increased glomerulosclerosis and interstitial fibrosis.</p></sec><sec><title>Conclusion</title><p>Conclusion: this case illustrates previously unreported combined kidney damage – renal sclerosing peritubular nodules and IgA nephropathy – in a patient with NF2 undergoing bevacizumab therapy.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>биопсия почки</kwd><kwd>нейрофиброматоз 2 типа</kwd><kwd>склерозирующие перитубуллярные узелки</kwd><kwd>IgA-нефропатия</kwd><kwd>бевацизумаб</kwd></kwd-group><kwd-group xml:lang="en"><kwd>kidney biopsy</kwd><kwd>neurofibromatosis type 2</kwd><kwd>renal sclerosing peritubular nodules</kwd><kwd>IgA nephropathy</kwd><kwd>anti-vascular endothelial growth factor therapy</kwd><kwd>bevacizumab</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">Plotkin SR, Messiaen L, Legius E et al. Updated diagnostic criteria and nomenclature for neurofibromatosis type 2 and schwannomatosis: An international consensus recommendation. Genet Med. 2022;24(9):1967-1977. DOI: 10.1016/j.gim.2022.05.007</mixed-citation><mixed-citation xml:lang="en">Plotkin SR, Messiaen L, Legius E et al. Updated diagnostic criteria and nomenclature for neurofibromatosis type 2 and schwannomatosis: An international consensus recommendation. Genet Med. 2022;24(9):1967-1977. DOI: 10.1016/j.gim.2022.05.007</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Colvin R B, Chang A, Cornell L.D. Diagnostic Pathology Diseases 4e Copyright © 2023 by Elsevier ISBN: 978-0-443-10717-7</mixed-citation><mixed-citation xml:lang="en">Colvin R B, Chang A, Cornell L.D. Diagnostic Pathology Diseases 4e Copyright © 2023 by Elsevier ISBN: 978-0-443-10717-7</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Han M, Criado E. Renal artery stenosis and aneurysms associated with neurofibromatosis. J Vasc Surg. 2005;41(3):539-543. DOI: 10.1016/j.jvs.2004.12.021.</mixed-citation><mixed-citation xml:lang="en">Han M, Criado E. Renal artery stenosis and aneurysms associated with neurofibromatosis. J Vasc Surg. 2005;41(3):539-543. DOI: 10.1016/j.jvs.2004.12.021.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Rhee H, Kim S, Lee W et al. Immunoglobulin A nephropathy in a patient with neurofibromatosis type 1: A case report and literature review. Medicine (Baltimore). 2021;100(42):e27572. DOI: 10.1097/MD.0000000000027572.</mixed-citation><mixed-citation xml:lang="en">Rhee H, Kim S, Lee W et al. Immunoglobulin A nephropathy in a patient with neurofibromatosis type 1: A case report and literature review. Medicine (Baltimore). 2021;100(42):e27572. DOI: 10.1097/MD.0000000000027572.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Mandybur TI, Weiss MA. Sclerosing peritubular nodules: a hereditary renal abnormality in von Recklinghausen’s disease. Hum Pathol 1981; 12: 704-712</mixed-citation><mixed-citation xml:lang="en">Mandybur TI, Weiss MA. Sclerosing peritubular nodules: a hereditary renal abnormality in von Recklinghausen’s disease. Hum Pathol 1981; 12: 704-712</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Gökden N, El Jamal S, Gökden M, Lamps LW. Renal sclerosing peritubular nodules in a patient with neurofibromatosis type 2: a case report with immunohistochemical and electron microscopic studies. Hum Pathol. 2009;40(11):1650-1654. DOI: 10.1016/j.humpath.2009.04.014.</mixed-citation><mixed-citation xml:lang="en">Gökden N, El Jamal S, Gökden M, Lamps LW. Renal sclerosing peritubular nodules in a patient with neurofibromatosis type 2: a case report with immunohistochemical and electron microscopic studies. Hum Pathol. 2009;40(11):1650-1654. DOI: 10.1016/j.humpath.2009.04.014.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Thomas S, Pahoff C, McClymont K, Parnham A. Renal sclerosing peritubular nodule-how rare is it? Clin Kidney J. 2013;6(4):426-428. DOI: 10.1093/ckj/sft056.</mixed-citation><mixed-citation xml:lang="en">Thomas S, Pahoff C, McClymont K, Parnham A. Renal sclerosing peritubular nodule-how rare is it? Clin Kidney J. 2013;6(4):426-428. DOI: 10.1093/ckj/sft056.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Salman LA, Kallis C, Palmer M et al. New-Onset Proteinuria in a Patient With Schwannoma. American Journal of Kidney Diseases, 2021;78(3):A12-A15, ISSN 0272-6386, DOI: 10.1053/j.ajkd.2021.03.031.</mixed-citation><mixed-citation xml:lang="en">Salman LA, Kallis C, Palmer M et al. New-Onset Proteinuria in a Patient With Schwannoma. American Journal of Kidney Diseases, 2021;78(3):A12-A15, ISSN 0272-6386, DOI: 10.1053/j.ajkd.2021.03.031.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Wu S, Kim C, Baer L, Zhu X. Bevacizumab increases risk for severe proteinuria in cancer patients. J Am Soc Nephrol. 2010;21(8):1381-1389. DOI: 10.1681/ASN.2010020167.</mixed-citation><mixed-citation xml:lang="en">Wu S, Kim C, Baer L, Zhu X. Bevacizumab increases risk for severe proteinuria in cancer patients. J Am Soc Nephrol. 2010;21(8):1381-1389. DOI: 10.1681/ASN.2010020167.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Yahata M, Nakaya I, Sakuma T et al. Immunoglobulin A nephropathy with massive paramesangial deposits caused by antivascular endothelial growth factor therapy for metastatic rectal cancer: a case report and review of the literature. BMC Res Notes 2013; 6: 450. DOI: 10.1186/1756-0500-6-450</mixed-citation><mixed-citation xml:lang="en">Yahata M, Nakaya I, Sakuma T et al. Immunoglobulin A nephropathy with massive paramesangial deposits caused by antivascular endothelial growth factor therapy for metastatic rectal cancer: a case report and review of the literature. BMC Res Notes 2013; 6: 450. DOI: 10.1186/1756-0500-6-450</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Endo Y, Negishi K, Hirayama K et al. Bevacizumab-induced immunoglobulin A vasculitis with nephritis: A case report. Medicine 2019;98(45):p e17870. DOI: 10.1097/MD.0000000000017870</mixed-citation><mixed-citation xml:lang="en">Endo Y, Negishi K, Hirayama K et al. Bevacizumab-induced immunoglobulin A vasculitis with nephritis: A case report. Medicine 2019;98(45):p e17870. DOI: 10.1097/MD.0000000000017870</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Izzedine H, Escudier B, Lhomme C et al. Кidney diseases associated with anti-vascular endothelial growth factor (VEGF): an 8-year observational study at a single center. Medicine (Baltimore). 2014;93(24):333-339. DOI: 10.1097/MD.0000000000000207.</mixed-citation><mixed-citation xml:lang="en">Izzedine H, Escudier B, Lhomme C et al. Кidney diseases associated with anti-vascular endothelial growth factor (VEGF): an 8-year observational study at a single center. Medicine (Baltimore). 2014;93(24):333-339. DOI: 10.1097/MD.0000000000000207.</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>
