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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">Bone and soft tissue sarcomas, tumors of the skin</journal-id><journal-title-group><journal-title xml:lang="en">Bone and soft tissue sarcomas, tumors of the skin</journal-title><trans-title-group xml:lang="ru"><trans-title>Саркомы костей, мягких тканей и опухоли кожи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2219-4614</issn><issn publication-format="electronic">2782-3687</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">77</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>SOFT TISSUE SARCOMAS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>САРКОМЫ МЯГКИХ ТКАНЕЙ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Retroperitoneal well-differentiated liposarcoma: prognostic significance of the degree of sclerosis in the tumor</article-title><trans-title-group xml:lang="ru"><trans-title>Забрюшинные высокодифференцированные липосаркомы: прогностическое значение доли склерозирующего компонента в опухоли</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Volkov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Волков</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>79164577128@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kozlov</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Козлов</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>newbox13@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nered</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Неред</surname><given-names>С. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nered@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Stilidi</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Стилиди</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>istilidi@front.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Stroganova</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Строганова</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>stroganova_am@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Archery</surname><given-names>P. P.</given-names></name><name xml:lang="ru"><surname>Архири</surname><given-names>П. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>arhiri@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Antonov</surname><given-names>E. Yu.</given-names></name><name xml:lang="ru"><surname>Антонова</surname><given-names>Е. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elenaantonova5@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Privezentsev</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Привезенцев</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">FSBI «National Medical Research Center of Oncology named after N.N. Blokhin» of the Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «НМИЦ онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">City Clinical Hospital D.D. Pletneva</institution></aff><aff><institution xml:lang="ru">ГБУ ДЗ г. Москвы Городская клиническая больница им. Д.Д. Плетнева</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-04-16" publication-format="electronic"><day>16</day><month>04</month><year>2020</year></pub-date><volume>12</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>14</fpage><lpage>23</lpage><history><date date-type="received" iso-8601-date="2021-04-16"><day>16</day><month>04</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Volkov A.Y., Kozlov N.A., Nered S.N., Stilidi I.S., Stroganova A.M., Archery P.P., Antonov E.Y., Privezentsev S.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Волков А.Ю., Козлов Н.А., Неред С.Н., Стилиди И.С., Строганова А.М., Архири П.П., Антонова Е.Ю., Привезенцев С.А.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Volkov A.Y., Kozlov N.A., Nered S.N., Stilidi I.S., Stroganova A.M., Archery P.P., Antonov E.Y., Privezentsev S.A.</copyright-holder><copyright-holder xml:lang="ru">Волков А.Ю., Козлов Н.А., Неред С.Н., Стилиди И.С., Строганова А.М., Архири П.П., Антонова Е.Ю., Привезенцев С.А.</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://sarbon.abvpress.ru/jour/article/view/77">https://sarbon.abvpress.ru/jour/article/view/77</self-uri><abstract xml:lang="en"><p>Objective. To study the influence of the degree of sclerosis in the retroperitoneal well-differentiated liposarcomas (WDLPS) on the long-term results of surgical treatment of patients. Material and methods. The study included 111 patients with primary retroperitoneal WDLPS who underwent radical surgical treatment in Federal State Budgetary Institution «N.N. Blokhin National Medical Research Center of Oncology» of the Ministry of Health of the Russian Federation. Histological slides of all surgical specimens were reviewed by an experienced pathologist and reclassified according to WHO criteria (2013) for histological subtypes of the WDLPS. Patients were divided into groups depending on the degree of tumor sclerosis and enrolled in intergroup analysis of overall (OS) and recurrencefree (RFS) survival was performed. Results. OS is significantly worse in the group of patients who had the degree of sclerosis in the tumor &gt;15% (p=0.0001; log-rank test). The median OS was 221 months (95% CI, 176, 265) in the group of lipoma-like subtype (sclerosis &lt;15%), and 115 months (95% CI, 90, 140) in the group of sclerosing subtype (sclerosis &gt;15%). The 10-year survival rates were 50% and 18% in the lipoma-like and sclerosing subtype groups respectively. RFS was also significantly worse in the group of patients with the sclerosing subtype of the WDLPS than in the group of patients with the lipoma-like subtype (p=0.001; log-rank test). The median RFS was 83 months (95% CI, 76, 90) in the lipoma-like subtype group, and 42 months (95% CI, 35, 49) in the sclerotic group. The 5-year RFS were 54% and 21% in the groups of lipoma-like and sclerosing subtypes respectively. Conclusion. Results of the study demonstrate that increased amount of sclerosing component in the WDLPS is associated with poor prognosis. We believe that semi-quantitative counting of sclerosing component in retroperitoneal WDLPS can serve as an effective morphological marker of a less favorable prognosis of the disease.</p></abstract><trans-abstract xml:lang="ru"><p>Цель исследования. Оценка взаимосвязи доли склеротических изменений в забрюшинных высокодифференцированных липосаркомах (ВДЛПС) с отдаленными результатами хирургического лечения больных. Материал и методы. В исследование были включены 111 пациентов с первичными забрюшинными ВДЛПС, которым выполнялось радикальное хирургическое лечение в ФГБУ «НМИЦ онкологии им. Н.Н. Блохина» Минздрава России. После пересмотра гистологических препаратов и реклассификации в соответствии с критериями ВОЗ (2013) все случаи были разделены на гистологические подтипы ВДЛПС. В зависимости от относительной доли склеротического компонента в опухоли больные были поделены на группы сравнения, включенные в межгрупповой анализ общей (ОВ) и безрецидивной (БРВ) выживаемости. Результаты. ОВ достоверно хуже в группе больных с долей склероза в опухоли &gt;15% (p=0,0001; log-rank test). Медиана ОВ в группе липомоподобного подтипа ВДЛПС (склероз &lt;15%) составила 221 (95% дИ, 176, 265) мес, в группе склерозирующего подтипа вДлПС (склероз &gt;15%) - 115 (95% ДИ, 90, 140) мес. Показатели 10-летней выживаемости в группах липомоподобного и склерозирующего подтипов ВДЛПС были 50 и 18 соответственно. БРВ достоверно хуже в группе больных со склерозирующим подтипом ВДЛПС, чем с липомодобным подтипом (p=0,001; log-rank test). Медиана БРВ в группе липомоподобного подтипа составила 83 (95% ДИ, 76, 90) мес, в группе склерозирующего подтипа - 42 (95% ДИ, 35, 49) мес. Показатели 5-летней БРВ в группах липомоподобного и склерозирующего подтипов были 54 и 21% соответственно. Заключение. Результаты исследования демонстрируют более агрессивное течение заболевания при увеличении объема склерозирующего компонента в ВДЛПС. Мы полагаем, что оценка доли склерозирующего компонента ВДЛПС может служить эффективным морфологическим маркером менее благоприятного прогноза при забрюшинных ВДЛПС.</p></trans-abstract><kwd-group xml:lang="en"><kwd>liposarcoma</kwd><kwd>well-differentiated liposarcoma</kwd><kwd>histologic subtype</kwd><kwd>non-organ retroperitoneal tumor</kwd><kwd>prognosis</kwd><kwd>sclerosing</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>липосаркома</kwd><kwd>высокодифференцированная липосаркома</kwd><kwd>гистологические подтипы</kwd><kwd>неорганные забрюшинные опухоли</kwd><kwd>прогноз</kwd><kwd>склерозирующий</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Fletcher CD, Bridge JA, Hogendoorn P, Mertens F WHO Classification of Tumours of soft tissue and bone. 4th Ed. IARC. 2013:33-44.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Creytens D. What’s new in adipocytic neoplasia? Virchows Arch. 2020;476(1):29-39.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Vanhoenacker FM, Parizel PM, Gielen JL Imaging of Soft Tissue Tumors. 4th Ed. 2017:225-230.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Goldblum JR, Weiss SW, Folpe AL. Liposarcoma. In: Goldblum JR, Weiss SW Folpe AL. Enzinger and Weiss’s soft tissue tumors, 6th edn. 2014 Elsevier, Philadelphia.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Canter RJ, Qin LX, Ferrone CR, Maki RG, Singer S, Brennan MF. Why do patients with low-grade soft tissue sarcoma die? Ann Surg Oncol. 2008;15(12):3550-3560.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Thway K, Flora R, Shah C, Olmos D, Fisher C. Diagnostic utility ofp16, CDK4, and MDM2 as an immunohistochemical panel in distinguishing well-differentiated and dedifferentiated liposarcomas from other adipocytic tumors. Am J Surg Pathol. 2012;36(3):462-469.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Dei Tos AP, Doglioni C, Piccinin S, Sciot R, Furlanetto A, Boiocchi M, Dal Cin P, Maestro R, Fletcher CD, Tallini G. Coordinated expression and amplification of the MDM2, CDK4, and HMGI-C genes in atypical lipomatous tumours. J Pathol. 2000;190(5):531-536.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Italiano A, Bianchini L, Keslair F, Bonnafous S, Cardot-Leccia N, Coindre JM, Dumollard JM, Hofman P, Leroux A, Mainguené C, Peyrottes I, Ranchere-Vince D, Terrier P, Tran A, Gual P, Pedeutour F. HMGA2 is the partner of MDM2 in well-differentiated and dedifferentiated liposarcomas whereas CDK4 belongs to a distinct inconsistent amplicon. Int J Cancer. 2008;122(10):2233-2241.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Sirvent N, Coindre JM, Maire G, Hostein I, Keslair F, Guillou L, Ranchere-Vince D, Terrier P, Pedeutour F. Detection of MDM2-CDK4 amplification by fluorescence in situ hybridization in 200 paraffin-embedded tumor samples: utility in diagnosing adipocytic lesions and comparison with immunohistochemistry and real-time PCR. Am J Surg Pathol. 2007;31(10):1476-1489. DOI: 10.1097/ PAS.0b013e3180581fff.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Tap WD, Eilber FC, Ginther C, Dry SM, Reese N, Barzan-Smith K, Chen HW, Wu H, Eilber FR, Slamon DJ, Anderson L. Evaluation of well-differentiated/de-differentiated liposarcomas by high-resolution oligonucleotide array-based comparative genomic hybridization. Genes Chromosomes Cancer. 2011;50(2):95-112.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Louis-Brennetot C, Coindre JM, Ferreira C, Perot G, Terrier P, Aurias A. The CDKN2A/CDKN2B/CDK4/CCND1 pathway is pivotal in well-differentiated and dedifferentiated liposarcoma oncogenesis: an analysis of 104 tumors. Genes Chromosomes Cancer. 2011;50(11):896-907.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Chrisinger JSA, Al-Zaid T, Keung EZ, Leung C, Lin HY, Roland CL, Torres KE, Benjamin RS, Ingram DR, Khan S, Somaiah N, Amini B, Feig BW, Lazar AJ, Wang WL. The degree of sclerosis is associated with prognosis in well-differentiated liposarcoma of the retroperitoneum. J Surg Oncol. 2019;120(3):382-388.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Weiss SW Rao VK. Well-differentiated liposarcoma (atypical lipoma) of deep soft tissue of the extremities, retroperitoneum, and miscellaneous sites. A follow-up study of 92 cases with analysis of the incidence of “dedifferentiation”. Am J Surg Pathol. 1992;16(11):1051-1058.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Evans HL. Atypical lipomatous tumor, its variants, and its combined forms: a study of 61 cases, with a minimum follow-up of 10 years. Am J Surg Pathol. 2007;31(1):1-14.</mixed-citation></ref></ref-list></back></article>
