An 8-year-old spayed Scottish Terrier was examined because of a history of intermittent abnormal behavior that progressed to hind limb ataxia and eventually to recumbency with opisthotonos. X-Ray computed tomography revealed a radiolucent mass in the area of the hypothalamus. At necropsy, a suprasellar cystic papillary meni-ngioma was identified. The unusual clinical signs of disease and computed tomographic findings of this case complicated diagnosis.
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Schulman et al. (1992) studied this question.