Spinal arachnoid cyst in four dogs: diagnosis, surgical treatment and follow-up results |
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Authors: | Frykman O F |
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Affiliation: | Animal Hospital of J?nk?ping, Sweden. |
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Abstract: | Spinal arachnoid cysts were diagnosed in four dogs; two schipperkes and two rottweilers. Myelography showed the cysts to be localised either at the second to third caudal vertebrae or between the eighth and tenth thoracic vertebrae. The cysts were drop-shaped with a dorsal midline localisation, intradural in the arachnoid space, and with a cranial opening. Surgical treatment was performed by one of two techniques; durotomy with drainage or durectomy with resection. As the pathological examination in one case revealed a lining of hyperplastic pia-arachnoid meningothelial cells in the cyst, it was assumed that the cyst originates from a developmental disturbance during formation of the arachnoid membrane. Follow-up studies were carried out from 10 months to four years postoperatively and revealed that there were no further problems in three out of four of the dogs during this period. |
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