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摘要

An 8-month-old 35-kg (77-lb) male Spanish Mastiff was referred for evaluation because of a 10-day history of dyspnea, anorexia, and progressive lethargy. The dog was treated with amoxicillin-clavulanic acid (12.5 mg/kg [5.7 mg/lb], PO, q 12 h for 8 days) without apparent improvement. On physical examination, the dog had a body condition score of 3 of 9. Auscultation of the thorax revealed moderate tachycardia, tachypnea, and diminished bronchovesicular sounds cranioventrally on the left side. No abnormalities were detected on hematologic and serum biochemical analysis. Radiographs of the thorax were taken (Figure 1).