Anatomical Chart Company Catalogue 2014

Anatomical Charts & Posters

Middle Ear Conditions

Posterior superior quadrant

Anterior superior quadrant

Normal RightEardrum

Pars tensa

Umbo

Posterior inferior quadrant

Light reflex

*

Epitympanic recess

Malleus

Incus Stapes

Middle ear cavity

Tensor tympani muscle

Tympanic membrane (eardrum)

Opening of eustachian tube tomiddle ear

Anterior inferiorquadrant

External acoustic meatus

Cartilage

Levatorveli palatinimuscle

Eustachian tube

Styloidprocess

Tensorveli palatinimuscle

Mastoidprocess

Eustachian tube

Glands

Fat

Tensorveli palatinimuscle

PATHOLOGIES

TREATMENT

DrainageTube Insertion

OtitisMedia withEffusion

Acute OtitisMedia

Levatorveli palatinimuscle

Atelectasis

*

*

*

*

MiddleEarDevelopment

Fluid

Fluid

Eardrum

Tube

Thinning andpotential collapse of the tympanicmembrane (eardrum).

This allows fluid todrain from themiddle ear andhelps equalize thepressure in the ear.

Relatively asymptomatic fluid in themiddle ear thatmaybe acute, subacute, or chronic innature.

Infected fluid in themiddle ear; it isusually of rapid onset and shortduration.

PATHOLOGY

PATHOLOGY

TREATMENT

TREATMENT

Eardrum Perforation

Adult

Stapedectomy

Tympanoplasty

Otosclerosis

*

Stapespiston prosthesis

Abnormal bone growth

Graft

Infant

Mastoid air cells

Eardrum

An abnormalgrowthofboneof the inner ear involving the stapes and cochlea. Otosclerosisprevents the stapes from movingproperly and causeshearing loss. It can also cause a sensorineural hearing losswhen it involves the cochlea.

This operation aims to improvehearing by replacing the fixed stapeswith amobile pistonprosthesis.

Asurgeryperformed to reconstruct aperforated tympanic membrane (eardrum)or the small bonesof themiddle ear.

Ahole in the tympanic membrane (eardrum) causedby

*

Eustachian tube

Middle ear cavity

Aditus

rapidpressure changes, inflammation,or trauma.

*Photos –© 2009ArunK.Gadre,MD

PATHOLOGY

PATHOLOGY

TREATMENT

TREATMENT

TREATMENT

BoneAnchored HearingAid

Ossicle Damage

Cholesteatoma

Mastoidectomy

Ossiculoplasty

Abutment

Canal WallUp

*

*

*

*

*

Prosthesis

Damaged incus

External acoustic meatus

Skin

Mastoid cavity

Mastoid air cells

Sound processor

Asurgical procedure that removes adiseased portionof themastoid bone.

The abutment is surgically attached to the titanium implant placed in thebone.A soundprocessor snapsonto the abutment.

An injury or infection that can damage themalleus, incus, or stapesbone.

Anoperation to repair, reconstruct, and improve the movementof the tiny bonesofhearing in themiddle ear.

Amass of entrapped skin in the middle ear or temporalbone.

*

Middle ear

*

CanalWallDown

©1999, 2000, 2009

|PublishedbyAnatomicalChartCompany in consultationwithArunK.Gadre,MD.,HeuserHearing InstituteProfessor ofOtology&Neurotology,UniversityofLouisville

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