Diseases of the ear and mastoid process

Cholesteatoma is a destructive and expanding growth consisting of keratinizing squamous epithelium in the middle ear and/or mastoid process.

Misophonia, literally "hatred of sound," is a presumed disorder of uncertain classification in which negative emotions, thoughts, and physical reactions are triggered by specific sounds.

Sensorineural hearing loss (SNHL) is a type of hearing loss, or deafness, in which the root cause lies in the inner ear or sensory organ (cochlea and associated structures) or the vestibulocochlear nerve (cranial nerve VIII) or neural part.

A glomus tumor (also known as a "solitary glomus tumor," "solid glomus tumor," or glomangioma) is a rare benign neoplasm arising from the glomus body and mainly found under the nail, on the fingertip or in the foot.

Microtia is a congenital deformity where the pinna (external ear) is underdeveloped.

Hearing loss, also known as hearing impairment, is a partial or total inability to hear.

Tinnitus is the hearing of sound when no external sound is present.

Otitis externa, also known as swimmer's ear, is an inflammation of the ear canal.

Otosclerosis or otospongiosis is an abnormal growth of bone near the middle ear.

A vestibular schwannoma is a benign primary intracranial tumor of the myelin-forming cells of the vestibulocochlear nerve (8th cranial nerve).

Otitis is a general term for inflammation or infection of the ear, in both humans and other animals.

Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear.

Usher syndrome is an extremely rare genetic disorder caused by a mutation in any one of at least 11 genes resulting in a combination of hearing loss and visual impairment, and is a leading cause of deafblindness.

Benign paroxysmal positional vertigo (BPPV) is a disorder arising from a problem in the inner ear.

Conductive hearing loss occurs when there is a problem conducting sound waves anywhere along the route through the outer ear, tympanic membrane (eardrum), or middle ear (ossicles).

Ménière's disease (MD) is a disorder of the inner ear that is characterized by episodes of feeling like the world is spinning (vertigo), ringing in the ears (tinnitus), hearing loss, and a fullness in the ear.

Otitis media is a group of inflammatory diseases of the middle ear.

Labyrinthitis, also known as vestibular neuritis, is inflammation of the inner ear.

Otomycosis is a fungal ear infection, a superficial mycotic infection of the outer ear canal.

A balance disorder is a disturbance that causes an individual to feel unsteady, for example when standing or walking.

Macrotia refers to an ear which is larger than would be expected.

Autoimmune inner ear disease (AIED) was first defined by Dr.

Cauliflower ear is a condition that occurs when the external portion of the ear is hit and develops a blood clot or other collection of fluid under the perichondrium.

Hyperacusis (also spelled hyperacousis) is a health condition characterized by an increased sensitivity to certain frequency and volume ranges of sound (a collapsed tolerance to usual environmental sound).

Superior canal dehiscence syndrome (SCDS) is a rare medical condition of the inner ear, leading to hearing and balance symptoms in those affected.

Ear disease is a subfield of otolaryngology addressing the pathology of the ear.

Large vestibular aqueduct, also known as enlarged vestibular aqueduct syndrome, is a syndromic form of hearing loss, caused by enlargement of the vestibular aqueduct in the inner ear.

Low-set ears are ears with depressed positioning of the pinna two or more standard deviations below the population average.