eustachian tube disease (DOID:9739)
Alliance: disease page
Alt IDs: ICD9CM:381.8, ICD9CM:381.89, UMLS_CUI:C0155435
Definition: A non-suppurative otitis media and eustachian tube disorder in which the tube is either too narrow or too wide. It can also be cuased by nasal inflammation which leads to inflammatory swelling and obstruction of the eustachian tube, which, in turn, leads to increased negative pressure in the middle ear and improper ventilation.