Final answer:
Cryptococcosis is typically diagnosed through microscopic examination of lung tissues or cerebrospinal fluids. Spinal tap and x-ray are commonly used to diagnose cryptococcosis.
Step-by-step explanation:
Cryptococcosis is typically diagnosed through microscopic examination of lung tissues or cerebrospinal fluids. India ink preparations can be used to visualize the capsules that surround the yeast cells. Serological tests are also available to confirm the diagnosis. However, endoscopy, Schick test, and Mantoux test are not commonly used to diagnose cryptococcosis.
Instead, a spinal tap is often performed to examine cerebrospinal fluid and a chest x-ray may be taken to evaluate lung involvement. These tests help in identifying the presence of the encapsulated yeast Cryptococcus neoformans, which causes cryptococcosis.