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What is discharging?

The release of fluid from the ear.

What defines purulent discharge?

Contains pus and indicates infection.

How does mucoid discharge differ from mucopurulent?

Mucoid is clear, while mucopurulent contains pus.

What happens in chronic suppurative otitis media?

Persistent ear infection with discharge and perforation.

What is the significance of a perforation in the tympanic membrane?

Allows for ear discharge and can lead to hearing loss.

What characterizes acute SOM?

Rapid onset of symptoms and inflammation in the middle ear.

What are the types of chronic suppurative otitis media?

Tubotympanic and attico-antral diseases.

What is the role of the Eustachian tube?

Equalizes pressure in the middle ear.

What distinguishes safe from unsafe types of otitis media?

Safe types do not involve the mastoid; unsafe types do.

What organism is commonly associated with ear infections?

Pseudomonas aeruginosa.

What are the symptoms of chronic suppurative otitis media?

Persistent discharge, hearing loss, and tinnitus.

What is the pathology of chronic otitis media?

Chronic inflammation of the mucoperiosteal lining.

What is a longitudinal fracture?

A fracture that runs parallel to the long axis of the bone.

What is a transverse fracture?

A fracture that runs perpendicular to the long axis of the bone.

What does otorrhea indicate?

Ear discharge, often due to infection.

What is the implication of a central perforation?

It can lead to persistent otorrhea and hearing loss.

What are the signs of chronic otitis media?

Persistent discharge and tympanic membrane perforation.

What is the difference between anterior and subtotal perforation?

Anterior is localized, while subtotal affects a larger area.

What defines atticoantral type?

Characterized by cholesteatoma expansion and potential complications.

What is a key symptom of cholesteatoma?

Often leads to otorrhea and hearing loss.

How does safe type differ from unsafe type?

Safe type has a lower risk of complications compared to unsafe type.

What is tympanoplasty?

Surgical repair of the eardrum to restore hearing.

What is the significance of the antrum?

It is a space that can harbor cholesteatoma and contribute to disease.

What are common signs of attic perforation?

Includes visible defects in the eardrum and possible discharge.

What is myringoplasty?

A procedure to repair a perforated eardrum without mastoidectomy.

What does the presence of keratin indicate?

It suggests the presence of cholesteatoma in the ear.

What are secondary effects of cholesteatoma?

Can lead to destruction of surrounding structures and hearing loss.

What is the role of investigations like CT?

To assess the extent of disease and plan treatment.

What is the external canal's function?

It channels sound waves to the eardrum.

What does C&S stand for in medical investigations?

Culture and sensitivity testing for infections.

What is cortical mastoidectomy?

Surgical removal of mastoid air cells to treat chronic infection.

What happens if cholesteatoma expands?

It can cause further destruction and complications in the ear.

What is the matrix in cholesteatoma?

The cellular structure that produces keratin and contributes to growth.

What are the implications of marginal perforation?

It may indicate a more extensive disease process.