Table 1. Disease staging of malignant otitis externa (MOE).3.
| Stages | Description |
|---|---|
| 1 | Clinical evidence of MOE with infection of the soft tissues beyond the EAC, but negative Tc-99 bone scan findings |
| 2 | Soft tissue infection beyond the EAC with positive Tc-99 bone scan findings |
| 3a | As above, but with paralysis of a single cranial nerve |
| 3b | As above, but with paralysis of multiple cranial nerves |
| 4 | Meningitis, empyema, sinus thrombosis, or brain abscesses |
EAC: external auditory canal; Tc-99: technetium-99.