To the authors' knowledge, this is the first report of the development of chylopericardium prior to development of chylothorax in a dog. Treatment with thoracic duct ligation and pericardectomy resulted in complete resolution of the effusion and clinical signs.

A 3 yr old intact male domestic shorthair cat was presented with urine extravasation from urethral rupture. Extensive skin necrosis developed in the perineal region and left hind limb that necessitated delayed primary wound closure with a caudal superficial epigastric axial pattern flap, scrotal and preputial rotational skin flaps, and perineal urethrostomy.

HistoryA 4-month-old sexually intact male Great Dane was referred because of regurgitation since being acquired at 3 months of age. The frequency of regurgitation had historically been approximately 3 to 4 episodes/d but had increased dramatically over the 24 hours prior to referral, with 20 to 30 episodes of regurgitation and 1 episode of vomiting being reported. The regurgitated material was described as containing food, liquid, and foam, and episodes were not related to feedings. The dog' s appetite had always been good; however, the owners reported that the dog had been anorectic the morning of initial evaluation. Vaccination and deworming status were complete and current.Physical examination revealed a quiet but responsive puppy with a body condition score of 1 of 5. The dog was approximately 8% dehydrated with marked diffuse muscle wasting. Thoracic auscultation revealed tachycardia with a heart rate of 160 beats/min, but no murmur or arrhythmia was appreciated. Increased bronchovesicular lung sounds were present on auscultation of the right side of the thorax. Findings on abdominal palpation were unremarkable. The dog had 1 retained testis and was normothermic. Complete blood count and serum biochemistry analysis performed the day of initial evaluation revealed only moderate leukocytosis characterized by a neutrophilia with a left shift. Thoracic radiography was performed (Figure 1). Determine whether additional imaging studies are required, or make your diagnosis from Figure 1-then turn the page →

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