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Determinación de lesiones congénitas en encéfalo en canes mediante resonancia magnética en Quito, Ecuador
Determination of congenital lesions in the encephalon of dogs by magnetic resonance imaging in Quito, Ecuador
DOI:
https://doi.org/10.15446/rfmvz.v70n3.106892Keywords:
resonancia magnética, Chiari–Like, malformaciones congénitas, hidrocefalia (es)MRI, Chiari–Like, congenital malformations, hydrocephalus (en)
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El objetivo de este estudio retrospectivo fue determinar malformaciones congénitas mediante resonancia magnética en 147 canes sometidos a un estudio de encéfalo por recomendación médica entre 2017 y 2022 en Quito, Ecuador. El resultado fue relacionado con el sexo, la edad y la raza de cada paciente. Se identificaron 16 pacientes mediante resonancia magnética con presencia de malformaciones congénitas. El grupo etario para estas patologías fue entre los 3 meses y 7 años y solo se encontró 1 paciente mayor de 7 años. La lesión que se diagnosticó con más frecuencia fue hidrocefalia, 8,2% (n=12/147); seguida por malformación de Chiari–Like, 1,4% (n=2/147); un diagnóstico de disgenesia de cuerpo calloso, 0,7% (n=1/147); y 1 caso de alteración del septum pellucidum, 0,7% (n=1/147). La hidrocefalia se presentó con mayor frecuencia entre los 3 meses y los 7 años en perros de raza Pug, Bulldog Inglés y braquiocefálicos. En segundo lugar, están las malformaciones de Chiari, cuya edad de diagnóstico fue de 1 a 7 años, diagnosticadas en un paciente braquiocefálico de raza Chihuahua y un paciente mesocefálico de raza Yorkshire Terrier. Las lesiones diagnosticadas con mayor frecuencia fueron la hidrocefalia (8,2%) y malformación de Chiari (1,4%), con una edad de aparición en su mayoría hasta los 7 años.
The aim of this retrospective study was to determine congenital malformations by MRI in 147 canines that underwent a brain scan by medical recommendation between 2017 and 2022 in Quito, Ecuador. The result was related to the sex, age, and breed of each patient. Sixteen patients were identified by MRI with the presence of congenital malformations. The age group for these pathologies was between 3 months and 7 years and only 1 patient older than 7 years was found. The most frequently diagnosed lesion was hydrocephalus 8.2% (n=12/147), Chiari–Like malformation 1.4% (n=2/147), a diagnosis of dysgenesis of the corpus callosum 0.7% (n=1/147) and 1 case of alteration of the septum pellucidum, 0.7% (n=1/147). Hydrocephalus occurred more frequently between 3 months and 7 years, in Pug, English Bulldog, and brachycephalic dogs. Chiari malformations were the second most common type, diagnosed between 1 and 7 years of age, and were found in a brachycephalic patient of the Chihuahua breed and a mesocephalic patient of the Yorkshire Terrier breed. The most frequently diagnosed lesions were hydrocephalus (8.2%) and Chiari malformation (1.4%), with an age of presentation mostly up to 7 years.
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Copyright (c) 2023 S.G. Parra-Guayasamín, M. V. Estrella-Silva, I. R. González–Puetate
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