Aspergillus

beta d glucanso bata d glucan is a cell wall component d. This is present in almost all fungi, except for crypticocus and psycho micites. It can be falsely positive due to weird contamination issues somewhat similar to the glactoman. Non netropenic patients don't tend to clear this out of their cerm. So they're not perfect. And if they are positive, that doesn't necessarily completely nail down the diagnosis.