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Diagnosis and Testing for C. neoformans Infection

This 800X magnification photomicrograph shows a sample of lung tissue infected with Cryptococcus fungal organisms.

Your healthcare provider may take a sample of blood to test for cryptococcal antigen.

How is a C. neoformans infection diagnosed?

Healthcare providers rely on your medical history, symptoms, physical examinations, and laboratory tests to diagnose a C. neoformans infection.

Your healthcare provider will take a sample of tissue or body fluid (such as blood, cerebrospinal fluid, or sputum) and send the sample to a laboratory to be examined under a microscope, tested with an antigen test, or cultured. Your healthcare provider may also perform tests such as a chest x-ray or CT scan of your lungs, brain, or other parts of the body.