Synonyms

Bony narrowing of external auditory canal

Subtypes

Absence of external auditory canal

May Be Caused by

Bone tumor

Bony EAC stenosis

Chondroid tumor

Cleidocranial dysostosis

Congenital rubeola

Crouzon syndrome

Exostosis of external auditory canal

Fibrous dysplasia

Klippel-Feil syndrome

Membranous EAC stenosis

Oculo-auriculo-vertebral spectrum

Osteoma

Osteopetrosis

Paget disease of bone

Recurrent external otitis

Surgery

Thalidomide embryopathy

Treacher Collins syndrome