• Proceedings of the Korean Society of Veterinary Clinics Conference
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• 2009.04a
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• pp.229-229
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• 2009

• Journal of Veterinary Clinics
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• v.23 no.2
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• pp.91-95
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• 2006

Chiari type 1 malformation is a developmental condition characterized by cerebellar herniation and syringohydromyelia in human beings. It has been reported as a common condition in the cavalier King Charles spaniel that is similar to human Chiari type 1 malformations. However, there are few documentations of diagnosed Chiari type 1 like malformation in other breed dogs. Abnormalities compatible with such a malformation were identified by magnetic resonance imaging in 24 dogs with neurologic signs in this study. The dogs were 15 females and 9 males. Their breed were variable, and 6 of the dogs were maltese, 5 were shih-tzu. The dogs had a variety of neurological signs and the severity of cerebellar herniation, syringohydromyelia, intracranial intra-arachnoid cyst or hydrocephalus.

• Journal of Veterinary Clinics
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• v.23 no.3
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• pp.366-370
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• 2006

Arachnoid cysts are intra-arachnoid collections of cerebrospinal fluid. They may cause neurological deficit through expansion that can compress normal neural tissue and obstruct cerebrospinal fluid flow. Intracranial arachnoid cysts were found in 4 patients aged 10 months to 20 months(mean age 15 months). The presenting symptoms included circling(dog 2,3), seizure(dog 1), progressive weakness(dog 1,2,3), increasing scoliosis(dog 3), worsening spasticity(dog 3), and salivation(dog 3). One patient showed no symptoms from the intracranial arachnoid cyst. There were no significant findings in complete blood count and serum chemistry. Computed tomography(CT) with/without magnetic resonance imaging(MRI) scans were performed in these cases. Hypodense intracranial arachnoid cyst was observed on CT images in dog 4. Sagittal T1-weighted(T1W) and T2-weighted(T2W) images and transverse T1W and T2W images revealed a intracranial arachnoid cysts with syringohydromyelia(dog 3) and hydrocephalus(dog 3,4) in the brain. Clinical signs of three cases were improved by medication.

• Journal of Veterinary Clinics
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• v.33 no.6
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• pp.381-384
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• 2016

A 7-year-old intact female Maltese dog was referred to the hospital with a history of paresis in the hind limbs, left head turn, and a loss of balance that persisted for 2 weeks. Her condition was initially managed with steroids, prescribed by the referring veterinarian, but her neurological symptoms were not alleviated. Physical and neurological examinations, radiography, computed tomography, and magnetic resonance imaging were performed. Based on the findings on these examinations, caudal occipital malformation syndrome (COMS) with syringohydromyelia was diagnosed. Medical treatment was not effective in the previous trial; therefore, foramen magnum decompression, durotomy, and free autogenous adipose tissue grafting were performed. After 3 days, an improvement was observed in the clinical symptoms and was maintained for 8 months postoperatively. Based on the results, it is suggested that the decompression method with a fat graft may be considered an effective surgical treatment for the management of COMS that did not respond well to previous medical treatment.