Data/hora: 06/06/2024 03:13:05

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Cholesteatoma and hydrocephalus associated to a third ventricle meningioma in a cat	
Autores: 	Wentz,Maria Fernanda; Vargas,Thainã Piccolo; Bianchi,Matheus Viezzer; Fett,Rochana Rodrigues; Lorenzo,Cíntia De; Pavarini,Saulo Petinatti.	
Data: 	2019-01-01	
Ano: 	2019	
Palavras-chave: 	Non-communicating hydrocephalus; Immunohistochemistry; Intraventricular tumors; Domestic cats.	
Resumo: 	ABSTRACT:  Meningiomas are neoplasms that commonly involve the central nervous system of cats, while cholesteatomas are nodular granulomatous chronic lesions within the choroid plexus that are rarely reported in cats. This study described a case of cholesteatoma and non-communicating hydrocephalus associated to a third ventricle meningioma in a cat. Clinically, the cat had a 2-year history of behavioral changes, photophobia and motor incoordination. At the necropsy, a tan-brown mass totally occluded the third ventricle, causing a severe dilation of the lateral ventricles (non-communicating hydrocephalus). Microscopically, the mass was composed by a neoplastic proliferation of spindle cells arranged in bundles, containing in the center psammomatous bodies (meningioma), while in the adjacent areas a cholesteatoma was observed, which was characterized by multiple cholesterol cleft formation, hemosiderosis and associated granulomatous inflammation. At immunohistochemistry (IHC), neoplastic cells had a marked immunostaining for vimentin, while were negative for cytokeratin and S100. The diagnosis of transitional meningioma occurring in association to cholesteatoma and non-communicating hydrocephalus in a cat was obtained mainly by the histological and IHC features. These are important methods to distinguish this condition from other neurological disorders in cats.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001000551	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20190213	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.49 n.10 2019	
Fonte: 	info:eu-repo/semantics/openAccess