Clinical diagnosis in ED
Can be aided by histopathology
If there is an affected joint it is important to evaluate for a septic arthritis
If there are draining wounds consider imaging and evaluate for osteomyelitis
Mycobacterium marinum
Cellulitis
Mycobacterium avium
Hand cellulitis
Chlamydophila psittaci
Facial cellulitis
Burkholderia cepacia
Orbital cellulitis