| Site |
Complication |
| Systemic |
Systemic infection |
| |
Altered mental status |
| |
Pain |
| External ear |
Otorrhea |
| Middle ear |
Temporal bone resorption |
| |
Ossicular destruction |
| |
Otic capsule destruction |
| |
Tympanic membrane rupture |
| |
Conductive hearing loss |
| Inner ear |
Sensorineural hearing loss |
| |
Dysequilibrium due to vestibular dysfunction |
| Periauricular |
Local infection |
| |
Mastoid infiltration (e.g. acute mastoiditis) |
| |
Facial nerve paresis/transsection |
| |
Cutaneous fistulas |
| |
Cervical abscess (Bezold's abscess) |
| |
Postauricular pain |
| |
Postauricular swelling |
| Intracranial |
Invasion of posterior fossa |
| |
Temporal lobe abscess |
| |
Parietal lobe abscess |
| |
Cerebellar abscess |
| |
Extradural abscess |
| |
Invasion of the labyrinth and Fallopian canal |
| |
Lateral sinus thrombosis/thrombophlebitis |
| |
Subdural abscess |
| |
Meningitis |
