A pancreatic pseudocyst is a collection of sterile pancreatic fluid enclosed by a wall of fibrous or granulation tissue; these structures are also considered a complication of pancreatitis. Several cases of pancreatic pseudocysts in dogs and cats have been described. Clinical signs are usually nonspecific and mimic those of pancreatitis Pancreatitis in Dogs and Cats Pancreatitis is an inflammatory condition that is common in dogs and cats. It can be acute or chronic and subclinical or associated with various clinical signs. Pancreatitis is diagnosed by... read more . On abdominal ultrasonography Ultrasonography in Animals Ultrasonography is the second most commonly used imaging format in veterinary practice. It uses ultrasonic sound waves in the frequency range of 1.5–15 megahertz (MHz) to create images of body... read more , a cystic structure in close proximity to the pancreas can be identified. Aspiration of the pseudocyst is relatively safe and should be attempted for diagnostic and therapeutic purposes. Fluid from a pancreatic pseudocyst should have few cells and should not contain any evidence of inflammation. Pancreatic pseudocysts can be treated medically or surgically. Medical management involves ultrasonographic-guided percutaneous aspiration and close monitoring of the size of the pseudocyst. Surgery may be indicated in animals with persistent clinical signs or when the pseudocyst fails to regress over time.
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Also see pet health content regarding disorders of the pancreas in cats Disorders of the Pancreas in Cats The pancreas is an organ that has 2 main functions: endocrine and exocrine. The endocrine pancreas produces the hormones insulin and glucagon, which regulate blood sugar levels. The exocrine... read more and dogs Pancreatitis and Other Disorders of the Pancreas in Dogs The pancreas is an organ that has 2 main functions: endocrine and exocrine. The endocrine pancreas produces the hormones insulin and glucagon, which regulate blood sugar levels. The exocrine... read more .