Atypically located arachnoid cyst in a five-year-old cat.
J Comp Pathol
; 200: 46-50, 2023 Jan.
Article
en En
| MEDLINE
| ID: mdl-36641986
Arachnoid cysts are cystic lesions that occur in spinal or intracranial locations in the leptomeningeal space. Four intracranial cases have been described in cats, three of which were diagnosed by imaging techniques alone. We now report the clinical, gross and histopathological findings in a 5-year-old, male-neutered European Shorthair cat that presented with chronic, asymmetrical encephalopathy. Using magnetic resonance imaging, a focal, fluid-filled cavity that did not show contrast enhancement was identified in the left temporal and piriform lobes. Necropsy confirmed the presence of a cystic, meningeal cavity filled with clear, serous fluid. Histologically, the cyst had an irregular, hypereosinophilic surface and single psammoma bodies with moderate perivascular oedema in the adjacent neuroparenchyma. Immunohistochemical evidence of meningeal tissue surrounding the cyst confirmed the diagnosis of an arachnoid cyst, which should be considered as a differential diagnosis of intracranial, fluid-filled cavities.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Encefalopatías
/
Enfermedades de los Gatos
/
Quistes Aracnoideos
Tipo de estudio:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
J Comp Pathol
Año:
2023
Tipo del documento:
Article
Pais de publicación:
Reino Unido