The following are the most important diseases or complications that may be co-morbid due to otitis externa diffusa:
Ears – mastoid process (H60-H95).
- Myringitis (inflammation of the eardrum).
The following are the main diseases or complications that may be contributed by otitis externa circumscripta:
Skin and subcutaneous (L00-L99).
- Furuncle (inflammation of a hair follicle that melts centrally like an abscess) – must be incised (“make an incision”).
Ears – mastoid process (H60-H95).
- Mastoiditis – mastoid process inflammation; acute inflammation in the mastoid process of the temporal bone with bone fusion.
Musculoskeletal system and connective tissue (M00-M99).
- Osteomyelitis (bone marrow inflammation).
Injuries, poisonings, and certain other sequelae of external causes (S00-T98).
- Lymph gland abscess
The following are the most important diseases or complications that may be contributed by otitis externa maligna:
Infectious and parasitic diseases (A00-B99).
- Sepsis (blood poisoning)
Musculoskeletal system and connective tissue (M00-M99).
- Osteomyelitis (bone marrow inflammation).
Psyche – nervous system (F00-F99; G00-G99)
- Cranial nerve deficits
- Meningitis (meningitis)
- Sinus vein thrombosis (SVT) – occlusion of a cerebral sinus (large venous blood vessels of the brain arising from duraduplications) by a thrombus (blood clot); clinical picture: headache, congestive papules and epileptic seizures.
