{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T21:41:55Z","timestamp":1777930915338,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T00:00:00Z","timestamp":1737936000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"crossref","award":["Finance code 001"],"award-info":[{"award-number":["Finance code 001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003593","name":"conselho nacional de desenvolvimento cient\u00edfico e tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J VET Diagn Invest"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:p>Feline meningiomas typically arise on the surface of the brain but can occur in the third ventricle. Meningiomas in the fourth ventricle have not been reported in cats, to our knowledge. Here, we describe the clinical and pathologic findings of meningioma in the fourth ventricle in 2 cats. Both affected patients (1 castrated male, 1 spayed female) were 15-y-old. Case 2 had neurologic signs, including absent menace response, head tilt, and ataxia. Grossly, both tumors were well-demarcated and firm, expanded the fourth ventricle, and compressed the adjacent neuroparenchyma. Cytology of the ventricular mass in case 1 revealed a spindle-cell neoplasm. Based on histology, the neoplasms were classified as WHO grade 1 fibrous meningioma (case 1) and transitional meningioma (case 2). Immunohistochemistry revealed diffuse, robust cytoplasmic E-cadherin and vimentin immunolabeling in both cases and multifocal, weak cytoplasmic pan-cytokeratin AE1\/AE3 immunolabeling in case 2. Our findings indicate that meningiomas should be included as a differential diagnosis for tumors of the fourth ventricle in cats.<\/jats:p>","DOI":"10.1177\/10406387241312895","type":"journal-article","created":{"date-parts":[[2025,1,28]],"date-time":"2025-01-28T21:57:59Z","timestamp":1738101479000},"page":"389-392","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Meningioma in the fourth ventricle in 2 cats"],"prefix":"10.1177","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4247-7478","authenticated-orcid":false,"given":"Igor R.","family":"Santos","sequence":"first","affiliation":[{"name":"Department of Veterinary Pathology, College of Veterinary Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Milena C.","family":"Paz","sequence":"additional","affiliation":[{"name":"Department of Veterinary Pathology, College of Veterinary Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcele B.","family":"Bandinelli","sequence":"additional","affiliation":[{"name":"Department of Veterinary Pathology, College of Veterinary Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rochana R.","family":"Fett","sequence":"additional","affiliation":[{"name":"Chatterie Centro de Sa\u00fade do Gato, Porto Alegre, Rio Grande do Sul, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4574-2836","authenticated-orcid":false,"given":"Daniel R.","family":"Rissi","sequence":"additional","affiliation":[{"name":"Athens Veterinary Diagnostic Laboratory, Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renato S.","family":"Sousa","sequence":"additional","affiliation":[{"name":"Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Universidade Federal do Paran\u00e1, Curitiba, Paran\u00e1, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shannon","family":"Swist","sequence":"additional","affiliation":[{"name":"Animal Health Diagnostic Laboratory, New Jersey Department of Agriculture, Trenton, NJ, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saulo P.","family":"Pavarini","sequence":"additional","affiliation":[{"name":"Department of Veterinary Pathology, College of Veterinary Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,1,27]]},"reference":[{"key":"e_1_3_2_2_2","first-page":"951","article-title":"Canine and feline meningiomas: diagnosis, treatment, and prognosis","volume":"26","author":"Adamo PF","year":"2004","unstructured":"Adamo PF, et al Canine and feline meningiomas: diagnosis, treatment, and prognosis. Compend Contin Educ Pract Vet 2004;26:951\u2013957.","journal-title":"Compend Contin Educ Pract Vet"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.3171\/foc.2006.20.3.10"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/vsu.12340"},{"key":"e_1_3_2_5_2","volume-title":"de Lahunta\u2019s Veterinary Neuroanatomy and Clinical Neurology","author":"de Lahunta A","year":"2020","unstructured":"de Lahunta A, et al de Lahunta\u2019s Veterinary Neuroanatomy and Clinical Neurology. 5th ed. Elsevier, 2020.","edition":"5"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/vco.12964"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532-950X.1994.tb00452.x"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1053\/jcpa.2000.0409"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1177\/0300985814564979"},{"key":"e_1_3_2_10_2","first-page":"310","volume-title":"Al-Mefty\u2019s Meningiomas","author":"Knosp E","year":"2011","unstructured":"Knosp E, Bertalanffy A. Meningiomas of the lateral and fourth ventricles. In: DeMonte F, et al, eds. Al-Mefty\u2019s Meningiomas. 2nd ed. Thieme, 2011:310\u2013322.","edition":"2"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1354\/vp.08-VP-0185-M-FL"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1053\/jcpa.1998.0260"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/vrc2.365"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10143-018-1019-0"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11060-004-2749-0"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.4142\/jvs.23207"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1177\/0300985810364528"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.1111\/cyt.13324"},{"key":"e_1_3_2_19_2","doi-asserted-by":"publisher","DOI":"10.4103\/0976-3147.178665"},{"key":"e_1_3_2_20_2","doi-asserted-by":"publisher","DOI":"10.1292\/jvms.21-0258"},{"key":"e_1_3_2_21_2","doi-asserted-by":"publisher","DOI":"10.1292\/jvms.10-0337"},{"key":"e_1_3_2_22_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1939-1676.2004.tb00158.x"},{"key":"e_1_3_2_23_2","doi-asserted-by":"publisher","DOI":"10.1354\/vp.38-1-47"},{"key":"e_1_3_2_24_2","doi-asserted-by":"publisher","DOI":"10.1590\/0103-8478cr20190213"}],"container-title":["Journal of Veterinary Diagnostic Investigation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/10406387241312895","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/10406387241312895","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/10406387241312895","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T00:28:08Z","timestamp":1777681688000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/10406387241312895"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,1,27]]},"references-count":23,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2025,3]]}},"alternative-id":["10.1177\/10406387241312895"],"URL":"https:\/\/doi.org\/10.1177\/10406387241312895","relation":{},"ISSN":["1040-6387","1943-4936"],"issn-type":[{"value":"1040-6387","type":"print"},{"value":"1943-4936","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,1,27]]}}}