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  • Pneumothorax is an accumulation of air outside the lungs, but inside the chest wall. The air outside the lung prevents the lungs from inflating normally, and can lead to lung collapse. There are several variations of pneumothorax.

  • Pododermatitis is a term used to describe inflammation of the feet or paws. It can be caused by many disorders including infections, allergies, hormonal disorders, immune-mediated diseases, tumors or cancers. Diagnostic testing is discussed. Effective treatment must be directed toward the underlying cause.

  • Polycystic Kidney Disease (PKD) is a hereditary kidney disease that causes multiple cysts (fluid pockets) in the kidneys. Cysts may also develop in other organs, particularly the liver and pancreas. Some affected cats may also develop cardiac abnormalities.

  • Polycystic kidney disease (PKD) is a hereditary kidney disease that causes multiple cysts (pockets of fluid) to form in the kidneys. As the dog ages, these cysts grow and gradually replace normal kidney tissue and disrupt kidney function. Affected dogs develop signs of chronic kidney disease.

  • Polycythemia vera is a rare disease of dogs and cats in which too many red blood cells are produced by the bone marrow. The blood becomes thick and has difficulty moving through the small blood vessels. Your pet may feel tired, sluggish, and weak. Polycythemia is a potentially fatal disease, but if discovered early enough, treatment may be possible. If left untreated, polycythemia vera can affect the heart.

  • Polyethylene glycol 3350 (PEG 3350) is a laxative that keeps water in the colon to soften stools and increase the frequency of stool production. It may also be used to empty the colon before a procedure, such as a colonoscopy. It is available with or without electrolytes. PEG 3350 is given by mouth, in the form of a powder or liquid.

  • Polyfolliculosis is a condition in which several feathers grow out of one feather follicle. These feathers may be irritating, causing the bird to pick at them or pluck them out. There is no specific treatment for this condition.

  • Polymyxin B/miconazole/prednisolone otic (brand name Surolan), is a combination antibacterial (polymyxin B), antifungal (miconazole), and anti-inflammatory steroid (prednisolone) ear drop medication. It is used to treat ear infections in cats and dogs. It is used “off label” or “extra-label” in species other than cats and dogs and to treat conditions other than ear infections. Polymyxin B/miconazole/prednisolone otic comes in an otic suspension form.

  • Avian polyomavirus infection (APV) can cause benign feather lesions in budgies, slow crop emptying in newly weaned parrots, hemorrhages on the skin, or acute death. Clinical signs, diagnostic testing, and preventive measures are explained in this handout.

  • Polysulfated glycosaminoglycan is an injectable disease-modifying osteoarthritis drug (DMOAD) used to treat non-infectious and traumatic arthritis in dogs. It is also used off-label in cats and small mammals.