ATAXIA DUE TO A VERTEBRAL HEMANGIOSARCOMA IN A HORSE

A haemangiosarcoma in a horse resulted in ataxia affecting all four le gs, a low head carriage and a reluctance to flex the neck. Ancillary d iagnostic procedures included the analysis of cerebrospinal fluid, sta nding lateral cervical radiographs and a myelogram. Post mortem a tumo ur was found which involved the body of the second cervical vertebra a nd the associated hypaxial muscles, with secondary intravertebral extr adural infiltration and focal compressive myelopathy. A histological e xamination showed that the tumour mas a haemangiosarcoma.