A 10-year-old 7.6-kg (16.7-lb) spayed female Pekingese was referred for evaluation because of progressive clinical signs including dull mentation, circling to the right, a right-sided head turn, head pressing, and, more recently, coughing, vomiting, anorexia, and melena. Empirical treatment with dexamethasone sodium phosphate, an antimicrobial, and a gastroprotectant was unsuccessful in resolving the clinical signs. Results of serum biochemical analysis and a CBC prior to referral revealed mildly high alkaline phosphatase activity and a stress leukogram.
What is the problem? Where is the lesion? What are the most probable causes of this problem? What is your plan to establish a