Evidencia histológica de la rinotraqueitis viral felina en Colombia
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Instituto Colombiano Agropecuario - ICA
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Se diagnostica por primera vez en Colombia, de
acuerdo con los síntomas clínicos y las características
macro y microscópicas, la enfermedad conocida como
Rinotraqueitis Viral Felina.
Los síntomas observados en el animal enfermo
consistieron en estornudos, disnea y secreción mucopurulenta
por las fosas nasales y en la conjuntiva ocular.
Se describieron las lesiones macroscópicas, que estaban
limitadas al tracto respiratorio superior y consistían en necrosis, ulceración y exudado mucopurulento
en las fosas nasales y cornetes.
Las lesiones microscópicas descritas consistieron
principalmente en hiperplasia epitelial, de generación
hidrópica y presencia de corpúsculos de inclusión intranucleares
eosinofílicos; además en la lámina propia
se observó marcada infiltración de polimorfonucleares
neutrófilos y fibroplasia; a diferencia de lo encontrado
por otros autores se describieron en el presente estudio
corpúsculos de inclusión intranucleares en los
fibroblastos.
El material inoculado en células de riñón fetal bovino
no produjo efecto citopático ni corpúsculos de
inclusión.
A disease known as Feline Viral Rhiriotracheitis (FVR) was diagnosed, for the first time in Colombia, based on clinical signs, gross and microscopical characteristics. Signs such as sneeze, dyspnea, nasal and ocular mucopurulent discharge were observed in the animal brought in for diagnosis. Gross lesion was limited to the upper respiratory tract and consisted of necrosis, ulceration and mucopurulent exudate from the nasal cavity and turbinates. Microscopically, epithelial hyperplasia, hudropic degeneration and eosinophiic intranuclear inclusion bodies were observed. Heavy neutrofilic infiltration and fibroplasia was observed in the lamina propia of the nasal septum. In contrast with other authors intranuclear inclusion bodies in fIbroblasts were seen. Samples for viral isolation were inoculated in fetal bovine kidney cells but neither citopathic effect nor inclusion bodies were observed.
A disease known as Feline Viral Rhiriotracheitis (FVR) was diagnosed, for the first time in Colombia, based on clinical signs, gross and microscopical characteristics. Signs such as sneeze, dyspnea, nasal and ocular mucopurulent discharge were observed in the animal brought in for diagnosis. Gross lesion was limited to the upper respiratory tract and consisted of necrosis, ulceration and mucopurulent exudate from the nasal cavity and turbinates. Microscopically, epithelial hyperplasia, hudropic degeneration and eosinophiic intranuclear inclusion bodies were observed. Heavy neutrofilic infiltration and fibroplasia was observed in the lamina propia of the nasal septum. In contrast with other authors intranuclear inclusion bodies in fIbroblasts were seen. Samples for viral isolation were inoculated in fetal bovine kidney cells but neither citopathic effect nor inclusion bodies were observed.
Palabras clave
Enfermedades de los animales - L73, Rinotraqueitis, Gato, Histología animal, Enfermedades respiratorias, Tejidos animales, Rinotraqueitis, Transversal