PANCREATIC PSEUDOCYST ASSOCIATED WITH CHRONIC-ACTIVE NECROTIZING PANCREATITIS IN A CAT

A 13-year-old, neutered female domestic shorthair was referred for eva luation of chronic, intermittent vomiting of approximately two years' duration. On physical examination, a fluctuant mass was palpated in th e left cranial abdominal quadrant. Significant laboratory findings inc luded neutrophilia, hyperglycemia, hyperlipasemia, and proteinuria. A distinct mass within the left cranial quadrant was noted on abdominal radiographs. Ultrasonographically, the pancreas appeared slightly hype rechoic with a hypoechoic mass arising from its left lobe. A cystic ma ss in the left lobe of the pancreas was identified during an explorato ry celiotomy. The mass and affected areas of the pancreas and a portio n of the spleen were resected The cat recovered completely. Cytologica l, histological, and laboratory evaluations of the mass were consisten t with pancreatic pseudocyst formation, which has been reported in dog s and humans but has not yet been reported in cats.