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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 ...
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The pneumatic otoscope is the standard tool used in diagnosing otitis media (infection of the middle ear). [4] The pneumatic otoscope has a pneumatic (diagnostic) head, which contains a lens, an enclosed light source, and a nipple for attaching a rubber bulb and tubing.
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.
Diagnosing bullous myringitis involves using an otoscope to spot distinctive white sack-like structures on the eardrum.Ear pain is the primary complaint. However, differentiating it from acute otitis media can be difficult, leading to early misdiagnosis.The rarity of bullous myringitis, especially compared to acute otitis media, can result in common misdiagnoses.
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 ...
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.
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.