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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Agronomy and Animal Industries</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Agronomy and Animal Industries</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Агрономия и животноводство</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-797X</issn><issn publication-format="electronic">2312-7988</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">19834</article-id><article-id pub-id-type="doi">10.22363/2312-797X-2022-17-4-527-535</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Veterinary science</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Ветеринария</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Morphological characteristics of testicular interstitial cell tumors in dogs</article-title><trans-title-group xml:lang="ru"><trans-title>Морфологическая характеристика лейдигом у собак</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7168-8744</contrib-id><name-alternatives><name xml:lang="en"><surname>Gazin</surname><given-names>Aleksey A.</given-names></name><name xml:lang="ru"><surname>Газин</surname><given-names>Алексей Алексеевич</given-names></name></name-alternatives><bio xml:lang="en"><p>postgraduate student, Department of Veterinary Medicine, Agrarian and Technological Institute, Peoples’ Friendship University of Russia; veterinarian-histologist, Department of Pathomorphological Diagnostics, Veterinary Oncological Research Center - ‘Biocontrol’ Veterinary Clinic</p></bio><bio xml:lang="ru"><p>аспирант департамента ветеринарной медицины аграрно-технологического института, Российский университет дружбы народов; ветеринарный врач - гистолог отделения патоморфологической диагностики, ветеринарный онкологический научный центр - ветеринарная клиника «Биоконтроль»</p></bio><email>svgazin@ya.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0036-3402</contrib-id><name-alternatives><name xml:lang="en"><surname>Vatnikov</surname><given-names>Yury A.</given-names></name><name xml:lang="ru"><surname>Ватников</surname><given-names>Юрий Анатольевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Veterinary Sciences, Professor, Director of the Department of Veterinary Medicine, Agrarian and Technological Institute</p></bio><bio xml:lang="ru"><p>доктор ветеринарных наук, профессор, директор департамента ветеринарной медицины аграрно-технологического института</p></bio><email>vatnikov_yua@rudn.university</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8989-5071</contrib-id><name-alternatives><name xml:lang="en"><surname>Abramova</surname><given-names>Ekaterina V.</given-names></name><name xml:lang="ru"><surname>Абрамова</surname><given-names>Екатерина Витальевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Veterinarian-cytologist, Department of Pathomorphological Diagnostics</p></bio><bio xml:lang="ru"><p>ветеринарный врач - цитолог отделения патоморфологической диагностики</p></bio><email>dementeva98kate@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (RUDN University)</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Veterinary Oncology Scientific Center - ‘Biocontrol’ Veterinary Clinic</institution></aff><aff><institution xml:lang="ru">Ветеринарный онкологический научный центр - ветеринарная клиника «Биоконтроль»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-12-27" publication-format="electronic"><day>27</day><month>12</month><year>2022</year></pub-date><volume>17</volume><issue>4</issue><issue-title xml:lang="en">VOL 17, NO4 (2022)</issue-title><issue-title xml:lang="ru">ТОМ 17, №4 (2022)</issue-title><fpage>527</fpage><lpage>535</lpage><history><date date-type="received" iso-8601-date="2022-12-27"><day>27</day><month>12</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Gazin A.A., Vatnikov Y.A., Abramova E.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Газин А.А., Ватников Ю.А., Абрамова Е.В.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Gazin A.A., Vatnikov Y.A., Abramova E.V.</copyright-holder><copyright-holder xml:lang="ru">Газин А.А., Ватников Ю.А., Абрамова Е.В.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://agrojournal.rudn.ru/agronomy/article/view/19834">https://agrojournal.rudn.ru/agronomy/article/view/19834</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The study presents an assessment of variability of histological structure, measurement, and comparison of size of the neoplasm obtained by ultrasonographic examination and pathological examination, as well as the morphometric dimensions of nuclei and cytoplasm of testicular interstitial cell tumors in dogs. The study involved 35 dogs with neoplasms of 46 testes, where 11 animals had interstitial cell tumors in both testes. Insignificant differences of the size of these neoplasms were revealed (p &gt; 0.05) using ultrasonography and pathoanatomical measurement methods. Hence, it allows using both methods to assess the size of interstitial cell tumors. In the study, interstitial cell tumor was detected in both testes at once in 50 % of cases in dogs, however, this might be due to specific characteristics of the sample, and further research is required. In the course of scientific work, a morphological study showed the presence of variability in histological structure of interstitial cell tumors, which can lead to incorrect interpretation of the morphological picture and misdiagnosis, e. g. «adipocyte-like» morphology of interstitial cell tumors have morphological similarity to a benign neoplasm from adipose tissue - lipoma. In addition, there was an extremely pronounced difference in size of cytoplasm (from 23.6 to 148.4 µm; average 66.21 ± 22.42 µm) and nuclei (from 9 to 57.6 µm; average 23.19 ± 7.10 µm) in tumor cells. It proves the presence of pronounced anisocytosis and anisokariosis, which should indicate malignancy of the neoplasm, however, testicular interstitial cell tumors extremely rarely metastasize in practice and according to numerous studies.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Представлены оценка вариабельности гистологического строения, результаты измерения и сравнения размеров новообразования, полученные путем ультрасонографического исследования и при патологоантомическом осмотре, а также морфометрических размеров ядер и цитоплазмы лейдигом у собак. В исследовании участвовало 35 собак с новообразованиями 46 семенников, где у 11 животных имелись лейдигомы в двух семенниках. В результате измерения размеров данных новообразований с помощью ультрасонографии и при патологоанатомической вырезке были выявлены недостоверные различия (p &gt; 0,05), что позволяет использовать оба метода для оценки размеров лейдигом. В нашем исследовании в 50 % случаях у собак лейдигомы выявлялись сразу в обоих семенниках, однако это может быть связано с особенностями выборки и требует дальнейших исследований. Морфологическое исследование в ходе научной работы показало наличие вариативности гистологического строения лейдигом, которая может приводить к неверной интерпретации морфологической картины и постановке неверного диагноза. В частности при выявлении «адипоцитоподобной» морфологии лейдигом они могут иметь морфологическую схожесть с доброкачественным новообразованием из жировой ткани - липомой. Кроме того, было выявлено крайне выраженное различение размеров цитоплазмы (от 23,6 до 148,4 мкм; среднее 66,21 ± 22,42 мкм) и ядер (от 9 до 57,6 мкм; среднее 23,19 ± 7,10 мкм) в опухолевых клетках, что говорит о наличии выраженного анизоцитоза и анизокариоза, которые должны свидетельствовать об озлокачествлении новообразования, однако на практике и по многочисленным исследованиям лейдигомы исключительно редко метастазируют.</p></trans-abstract><kwd-group xml:lang="en"><kwd>tumors</kwd><kwd>testes</kwd><kwd>interstitial cell tumors</kwd><kwd>morphology</kwd><kwd>morphometry</kwd><kwd>dog</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>опухоли</kwd><kwd>семенники</kwd><kwd>лейдигома</kwd><kwd>морфология</kwd><kwd>морфометрия</kwd><kwd>собака</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Gazin AA, Lisitskaya KV, Vatnikov YA, Kornyushenkov EA. Incidence and differential diagnosis for canine testicular tumors. Bulletin of KSAU. 2021;(7):152-157. (In Russ.). doi: 10.36718/1819-4036-2021-7-152-157</mixed-citation><mixed-citation xml:lang="ru">Газин А.А., Лисицкая К.В., Ватников Ю.А., Корнюшенков Е.А. Инцидентность и дифференциальная диагностика опухолей семенников у собак // Вестник Красноярского государственного аграрного университета. 2021. № 7 (172). С. 152-157. doi: 10.36718/1819-4036-2021-7-152-157</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><mixed-citation>Gazin AA, Vatnikov YA, Sturov NV, Kulikov EV, Grishin V, Krotova EA, Razumova AA, Rodionova NY, Troshina NI, Byakhova VM, Lisitskaya KV. Canine testicular tumors: An 11-year retrospective study of 358 cases in Moscow Region, Russia. Veterinary World. 2022;15(2):483-487. doi: 10.14202/vetworld.2022.483-487</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Grieco V, Riccardi E, Greppi GF, Teruzzi F, Iermano V, Finazzi M. Canine testicular tumours: a study on 232 dogs. Journal of Comparative Pathology. 2008;138(2-3):86-89. doi: 10.1016/j.jcpa.2007.11.002</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Liao AT, Chu PY, Yeh LS, Lin CT, Liu CH. A 12-year retrospective study of canine testicular tumors. Journal of Veterinary Medical Science. 2009;71(7):919-923. doi: 10.1292/jvms.71.919</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Manuali E, Forte C, Porcellato I, Brachelente C, Sforna M, Pavone S, Ranciati S, Morgante R, Crescio IM, Ru G, Mechelli L. A five-year cohort study on testicular tumors from a population-based canine cancer registry in central Italy (Umbria). Preventive Veterinary Medicine. 2020;185:105201. doi: 10.1016/j.prevetmed.2020.105201</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Maxie MG. Jubb, Kennedy &amp; Palmer’s Pathology of Domestic Animals: Volume 3. 6th ed. London: Elsevier health sciences; 2015.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Meuten DJ. (ed.) Tumors in domestic animals. 5th ed. John Wiley &amp; Sons; 2016.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Nascimento HH, Santos AD, Prante AL, Lamego EC, Tondo LA, Flores MM, Fighera RA, Kommerset GD. Testicular tumors in 190 dogs: clinical, macroscopic and histopathological aspects. Pesquisa Veterinária Brasileira. 2020;40(7):525-535. doi: 10.1590/1678-5150-PVB-6615</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Vail DM, Thamm DH, Liptak J. (eds.) Withrow and MacEwen’s Small Animal Clinical Oncology. 6th ed. Elsevier Health Sciences; 2019.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Kudo T, Kamiie J, Aihara N, Doi M, Sumi A, Omachi T, Shirota K. Malignant Leydig cell tumor in dogs: two cases and a review of the literature. Journal of Veterinary Diagnostic Investigation. 2019;31(4):557-561. doi: 10.1177/1040638719854791</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Nødtvedt A, Gamlem H, Gunnes G, Grotmol T, Indrebø A, Moe L. Breed differences in the proportional morbidity of testicular tumours and distribution of histopathologic types in a population-based canine cancer registry. Veterinary and Comparative Oncology. 2011;9(1)45-54. doi: 10.1111/j.1476-5829.2010.00231.x</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Togni A, Rütten M, Rohrer Bley C, Hurter K. Metastasized Leydig cell tumor in a dog. Schweiz Arch Tierheilkd. 2015;157(2):111-115. doi: 10.17236/sat00010</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Canadas A, Romão P, Gärtner F. Multiple cutaneous metastasis of a malignant Leydig cell tumour in a dog. Journal of Comparative Pathology. 2016;155(2-3):181-184. doi: 10.1016/j.jcpa.2016.05.012</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Orlandi R, Vallesi E, Boiti C, Polisca A, Bargellini P, Troisi A. Characterization of testicular tumor lesions in dogs by different ultrasound techniques. Animals. 2022;12(2):210. doi: 10.3390/ani12020210</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Doxsee AL, Yager JA, Best SJ, Foster RA. Extratesticular interstitial and Sertoli cell tumors in previously neutered dogs and cats: a report of 17 cases. The Canadian Veterinary Journal. 2006;47(8):763-766.</mixed-citation></ref></ref-list></back></article>
