Cryptococcosis laboratory tests

Overview
Symptoms include chest pain, dry cough, swelling of abdomen, headache, blurred vision and confusion. Although symptoms may not be able to be detected.

Detection of cryptococcal antigen (capsular material) by culture of CSF, sputum and urine provides definitive diagnosis. Blood cultures may be positive in heavy infections.

Tests that may be done include:
 * Blood culture
 * CT scan of the head
 * Sputum culture and stain
 * Lung biopsy
 * Bronchoscopy
 * Spinal tap to obtain a sample of cerebrospinal fluid (CSF)
 * Cerebrospinal fluid (CSF) culture and other tests to check for signs of infection
 * Chest x-ray
 * Cryptococcal antigen test (looks for a certain molecule that the Cryptococcus fungus can shed into the blood)