Successful treatment of feline pancreatolithiasis associated with an ascending Providencia rettgeri infection using a novel surgical technique.

A 12-year-old female spayed Domestic Shorthair cat presented with a 4-day history of lethargy, inappetence and vomiting. Physical findings included a grade 2/6 heart murmur and cranial abdominal pain on palpation. Serum biochemistry revealed elevated total bilirubin and liver enzymes activities. Abdominal ultrasound revealed multiple pancreatoliths, cholelithiasis and dilation of the pancreatic duct. During exploratory laparotomy, catheterisation of the pancreatic duct with retrograde and orthograde flushing to remove the pancreatoliths was performed via a distal enterotomy and proximal left apical partial pancreatectomy respectively. Catheterisation and flushing of the common bile duct were performed to confirm patency prior to cholecystectomy. Bacterial culture of pancreatoliths, pancreatic tissue and bile grew a heavy, pure growth of Providencia rettgeri. Fluorescent immunostaining histopathology revealed clusters of rod-shaped bacteria within the pancreatic parenchyma and gall bladder mucosa. The cat received pradofloxacin for two weeks. She made a complete recovery and remained well at a six-month follow-up.