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Otitis externa; Other names: External otitis, swimmer's ear [1] A moderate case of otitis externa. There is narrowing of the ear channel, with a small amount of exudate and swelling of the outer ear. Specialty: Otorhinolaryngology: Symptoms: Ear pain, swelling of the ear canal, decreased hearing, [2] difficulty chewing: Types: Acute, chronic [2 ...
The most common aetiology of acute otitis externa is bacterial infection, [5] while chronic cases are often associated with underlying skin diseases such as eczema or psoriasis. [6] A third form, malignant otitis externa, or necrotising otitis externa, is a potentially life-threatening, invasive infection of the external auditory canal and ...
Upon examination of a suspected case of patulous Eustachian tube, a doctor can directly view the tympanic membrane with a light and observe that it vibrates with every breath taken by the patient. A tympanogram may also help with the diagnosis. Patulous Eustachian tube is likely if brisk inspiration causes a significant pressure shift.
May see signs of otitis media on exam Pain is located behind the ear with postauricular (i.e. near mastoid process) swelling* Diagnose with CT Chronic suppurative otitis media: Conductive hearing loss Relapsing/remitting or chronic discharge May see perforation of tympanic membrane or cholesteatoma on exam Serous otitis media
Otomycosis does not usually cause as much canal skin edema as does acute bacterial external otitis.While a severe pressure type of pain is a prominent feature of advanced cases, the ear is usually much less tender, if at all, to traction or tragal pressure.
Clinically, patients experience aural fullness, intra-meatal itching, and malodorous otorrhea all at the same time. Although granular myringitis does not typically result in a hearing loss, it can cause complications like inflammatory infiltration of the deep canal, canal atresia or stenosis, and post-inflammatory medial canal fibrosis.
Otitis media, cholesteatoma [1] Types: Dilatory, baro-challenged induced, patulous [1] Causes: Common cold, influenza, allergic rhinitis, sinusitis [1] Differential diagnosis: Endolymphatic hydrops, temporomandibular joint dysfunction, superior canal dehiscence syndrome, labyrinthine fistula [1]
The cone of light, or light reflex, is a visible phenomenon which occurs upon examination of the tympanic membrane with an otoscope. [1] Shining light on the tympanic membrane causes a cone-shaped reflection of light to appear in the anterior inferior quadrant.