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Otitis externa. 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. Otitis externa, also called swimmer's ear, [ 1] is inflammation of the ear canal. [ 2] It often presents with ear pain, swelling of the ear canal, and occasionally decreased hearing. [ 2]
Otitis media. Otitis media is a group of inflammatory diseases of the middle ear. [ 2] One of the two main types is acute otitis media ( AOM ), [ 3] an infection of rapid onset that usually presents with ear pain. [ 1] In young children this may result in pulling at the ear, increased crying, and poor sleep. [ 1]
Otomycosis. Otomycosis is a fungal ear infection, [ 1] a superficial mycotic infection of the outer ear canal caused by micro-organisms called fungi which are related to yeast and mushrooms. It is more common in tropical or warm countries. The infection may be either subacute or acute and is characterized by itching in the ear, malodorous ...
Otitis is a general term for inflammation in ear or ear infection, inner ear infection, middle ear infection of the ear, in both humans and other animals. When infection is present, it may be viral or bacterial. [ 1] [ 2] When inflammation is present due to fluid build up in the middle ear and infection is not present it is considered Otitis ...
Mastoiditis. Side view of head, showing surface relations of bones. (Mastoid process labeled near center.) Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside [ 1] the mastoid process.
Ear pain due to an infection is the most common in children and can occur in babies. [10] Adults may need further evaluation if they have hearing loss, dizziness or ringing in the ear. [ 6 ] Additional red flags include diabetes, a weakened immune system, swelling seen on the outer ear, or swelling along the jaw.
Citrobacter koseri, formerly known as Citrobacter diversus, is a Gram-negative non-spore forming, rod-shaped bacterium. It is a facultative anaerobe capable of aerobic respiration. It is motile via peritrichous flagella. [ 2] It is a member of the family of Enterobacteriaceae.
Preauricular sinuses and preauricular cysts are two common congenital malformations. Each involves the external ear. The difference between them is that a cyst does not connect with the skin, but a sinus does. [ 3] Frequency of preauricular sinus differs depending the population: 0.1–0.9% in the US, 0.9% in the UK, and 4–10% in Asia and ...