Cryptococcal meningitis

Cryptococcus neoformans is a kind of encapsulated fungal organism that widely exists in the nature. Because of its neurotropic nature, the central nervous system becomes its major target organ. Cryptococcus neoformans can use "transcellular pathway", "paracellular pathway" and "Trojan horse approach" to cross blood-brain barrier, and then make the devastating diffusion. Despite antifungal therapy, the mortality rate remains between 10% and 25% in patients with cryptococcal meningitis (CM) and acquired immunodeficiency syndrome (AIDS), and at least one⁃third of patients have experienced failure of antifungal therapy. Consequently, it is very important for us to understand the pathogenesis of CM, to diagnose as soon as possible and to explore more reasonable treatment.