Cryptococcosis is a localized or systemic fungal infection caused by the environmental yeast, Cryptococcus. This fungus grows in bird droppings and decaying vegetation, and is generally associated with Eucalyptus trees. However, it is found worldwide and some areas of southern California, Canada and Australia have been found to be more prone to the fungus.
The fungus is contracted through the dog's nasal passages and then passes into the brain, eyes, lungs, and other tissues. It is usually rare in dogs.
The condition or disease described in this medical article can affect both dogs and cats. If you would like to learn more about how this disease affects cats, please visit this page in the PetMD health library.
Symptoms will vary and depend greatly on the organ systems affected by the fungus. However, animals may have a history of problems for weeks or months, be especially sluggish, and (in less than 50 percent of animals) have a mild fever. Other symptoms include:
The Cryptococcus yeast is usually inhaled through the nasal passages. Occasionally, these organisms may reach the terminal airways, although it is unlikely.
It can also infect the stomach and the intestines, entering through the gastrointestinal tract.
Your veterinarian will be making a diagnosis based on findings from the following tests:
Something that is related to the whole body and not just one particular part or organ
A type of fungus that produces buds
Small structures that filter out the lymph and store lymphocytes
The feces of an animal
The process of removing tissue to examine it, usually for medical reasons.
Any substance or item that the body of an animal would regard as strange or unwanted; a foreign disease or virus in the body (toxin, etc.)
The digestive tract containing the stomach and intestine