A 12-year-old 5.4-kg (11.88-lb) spayed female Miniature Dachshund was referred for evaluation of a left head tilt and vestibular ataxia. The dog had become progressively ataxic over the preceding 3 days. Initially, the dog was presented to the primary veterinarian, who performed a CBC and serum biochemical panel; there were no important hematologic findings, and moderately high alanine transaminase activity (237 U/L; reference range, 10 to 125 U/L) and mild hyperglobulinemia (4.6 g/dL; reference range, 2.5 to 4.5 g/dL) were identified. The dog was given maropitant citrate (1 mg/kg [0.45 mg/lb], SC, once) just prior to referral. At the referral
A 10-month-old 26.8-kg castrated male Golden Retriever was referred because of a 5-month history of progressive pelvic limb ataxia and paresis. Prior to referral, the dog was evaluated by the primary veterinarian and empirically treated with prednisone (20 mg, PO, q 12 h, on a tapering schedule), doxycycline (unknown dosage), and physical therapy. The dog’s pelvic limb ataxia improved with medical treatment but worsened as the prednisone dosage was tapered.
On referral examination, the dog was bright, alert, and responsive and had abrasions on the dorsal aspect of digits 2 and 3 of the pelvic limbs bilaterally. The nails