Fungi and mycobacteria in tissue

Fungi and mycobacteria are ubiquitous in our environment. Many organisms colonise skin, airways other sites. Identifying tissue, along with the characteristic immune response to is essential diagnosis of fungal mycobacterial infections. Morphological appearances often non-specific, staining patterns, cultures methods, including molecular techniques used specifically identifying organisms. Host reaction patterns specific can vary from inactive, purulent, granulomatous evolve over course infection. Aspergillus an example fungus that produces a variety reactions it be commensal, cavity, produce allergic or invade tissue haemorrhagic necrosis. Tissue Mycobacteria Ulcerans changes time anergy, purulent phases, located deep tissue. The Leprae dependent on locating organism .