To reach a definitive diagnosis, the organism has to be cultured from the infection site or, in severe cases, from a blood culture.  The diagnosis is made by growing this bacterium in the laboratory from a sample of the pus or biopsy of the infected area.
Mycobacterium abscessus laboratory findings
Mycoplasma pneumonia physical examination
Paracoccidioidomycosis laboratory findings
Mycoplasma pneumonia laboratory findings
Zygomycosis laboratory findings
Typhus laboratory findings
Mycobacterium abscessus physical examination
Tuberculosis laboratory findings