An 11-year-old 110-kg (242.5-lb) sexually intact female lion (Panthera leo) from Senda Viva Zoologic Park in Arguedas, Spain, was evaluated because of signs of depression, lethargy, prostration, mild dehydration, loss of appetite, and vomiting of 9 days' duration.
Clinical and Gross Findings
A CBC and serum biochemical analyses were performed. Results of the CBC were unremarkable, but serum aspartate aminotransferase activity was high (288 U/L; reference range, 0 to 192 U/L). To obtain a hepatic wedge biopsy specimen, the lion was premedicated with medetomidine (10 μg/kg [4.5 μg/lb], IM) and midazolam (0.2 mg/kg [0.09 mg/lb], IM); an
A 16-year-old sexually intact male Cocker Spaniel was referred for fluoroscopy and esophagogastroduodenoscopy to investigate a 6-week history of ptyalism and regurgitation. Gastrointestinal tract obstruction was suspected.
Clinical, Gross, and Cytologic Findings
At the referral evaluation, the dog was responsive and in good body condition (body condition score, 5/9). Two orthogonal radiographic views obtained by the referring veterinarian revealed a radiodense, well-demarcated, space-occupying mass within the cranial aspect of the thorax at the level of the T2-T4 vertebrae. The dog was anesthetized to perform fluoroscopic and upper GI endoscopic examination. The presence of a 4.1 × 2.5 × 3.1-cm,