Fungal Infection (Pneumocystosis) of the Lung in Dogs
Pneumocystosis in Dogs
Pneumocystosis is a fungal (Pneumocystis carinii) infection of the respiratory system. Commonly found in the environment, P. carinii only affects dogs (or humans) with compromised immune systems. This is because the weakened body defenses allows the organism to multiply and grow to critical levels in the lungs.
Symptoms and Types
Generally, the breathing difficulties will progressively worsen over a four-week period. Other signs associated with pneumocystosis include:
Pneumocystosis is caused by an overabundance of the P. carinii fungus in the respiratory system, typically found in immune-compromised dogs.
You will need to give a thorough history of your dog’s health, including the onset and nature of the symptoms, to your veterinarian. He or she will then perform a complete physical examination, as well a biochemistry profile, urinalysis, and complete blood count (CBC) -- the results of which are usually non-specific and may show increased number of leukocytes or white blood cells as seen in infections, increased number of eiosinophils, and increased number of red blood cells. Blood gases testing, meanwhile, may reveal decreased partial pressure of oxygen in blood (hypoxemia), and increased pressure in blood pH. Thoracic X-rays are also conducted to see the severity and stage of the infection, as related to the lungs.\
For definitive diagnosis, however, your veterinarian will take a respiratory fluid sample or tissue sample to a pathologist to test for abnormal levels of P.carinii. Although it is the most reliable method for verifying pneumocystosis, lung biopsies are not without complications. Moreover, few diagnostic kits are available.
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
Pertaining to the chest
A procedure of imaging internal body structures by exposing film
A medical condition in which the body has lost fluid or water in excessive amounts
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