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KMID : 1094020160330030168
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Journal of Veterinary Clinics
2016 Volume.33 No. 3 p.168 ~ p.171
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Ethmoidal Meningoencephalocele Associated with Seizure in a Juvenile Alaskan Malamute
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Park Sun-young
Lee Young-Jae
Song Jin-Young
Jeon Seok-ho
Jeong Ji-yoon
Kang Byeong-taek
Kang Ji-Hoon
Chang Jin-Hwa
Chang Dong-Woo
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Abstract
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Signalment: An 8-month-old female Alaskan malamute was presented for progressive cluster seizure disorder. Results: There were no abnormalities on neurological examination, survey radiographs, or blood analysis. Magnetic resonance (MR) imaging and computed tomography revealed extension of the olfactory bulb and frontal lobe into the nasal cavity. They also confirmed abnormal anatomy of the nasal turbinates within the rostral part of the nasal cavity and the absence of a cribriform plate. On T2-weighted and fluid-attenuated inversion recovery images, the herniated brain showed heterogeneous and hyperintense signals consistent with intraparenchymal edema. Transverse MR images showed brain herniation into the right frontal cavity and an asymmetrical lateral ventricle because of a left midline shift. On contrast-enhanced MR images, the protruding brain parenchyma was mildly enhanced. Ethmoidal encephalocele was suspected as the final diagnosis. Despite symptomatic treatment, the dog continued to exhibit seizures and was euthanized. Clinical relevance: Ethmoidal encephalocele is a rare disease in dogs. However, it could be considered as a cause of seizure in young dogs.
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KEYWORD
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dog, ethmoidal meningoencephalocele, seizure
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