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Frequency. ~30% of people to some degree [1] Deaths. None reported. Aphthous stomatitis, [2] or recurrent aphthous stomatitis (RAS), commonly referred to as a canker sore, is a common condition characterized by the repeated formation of benign and non- contagious mouth ulcers (aphthae) in otherwise healthy individuals.
Pharyngitis —inflammation of the back of the throat—caused by a virus is the most common cause of a sore throat. Sore throat, also known as throat pain, is pain or irritation of the throat. [ 1 ] The majority of sore throats are caused by a virus, for which antibiotics are not helpful. [ 2 ] A strong association between antibiotic misuse ...
A case of strep throat. Streptococcal pharyngitis or strep throat is caused by a group A beta-hemolytic streptococcus (GAS). [20] It is the most common bacterial cause of cases of pharyngitis (15–30%). [19] Common symptoms include fever, sore throat, and large lymph nodes. It is a contagious infection, spread by close contact with an infected ...
Diagramatic representation of mucosal erosion (left), excoriation (center), and ulceration (right) Simplistic representation of the life cycle of mouth ulcers. An ulcer (/ ˈ ʌ l s ər /; from Latin ulcus, "ulcer, sore") [2] is a break in the skin or mucous membrane with loss of surface tissue and the disintegration and necrosis of epithelial tissue. [3]
Streptococcal pharyngitis, also known as streptococcal sore throat (strep throat), is pharyngitis (an infection of the pharynx, the back of the throat) caused by Streptococcus pyogenes, a gram-positive, group A streptococcus. [10][11] Common symptoms include fever, sore throat, red tonsils, and enlarged lymph nodes in the front of the neck.
355,000 new cases (2018) [ 5 ] Deaths. 177,000 (2018) [ 5 ] Oral cancer, also known as oral cavity cancer, tongue cancer or mouth cancer, is a cancer of the lining of the lips, mouth, or upper throat. [ 6 ] In the mouth, it most commonly starts as a painless red or white patch, that thickens, gets ulcerated and continues to grow.
Herpangina, also called mouth blisters, is a painful mouth infection caused by coxsackieviruses. Usually, herpangina is produced by one particular strain of coxsackie virus A (and the term "herpangina virus" refers to coxsackievirus A), [1] but it can also be caused by coxsackievirus B or echoviruses. [2] Most cases of herpangina occur in the ...
Diphtheria is an infection caused by the bacterium Corynebacterium diphtheriae. [ 2 ] Most infections are asymptomatic or have a mild clinical course, but in some outbreaks, the mortality rate approaches 10%. [ 1 ] Signs and symptoms may vary from mild to severe, [ 1 ] and usually start two to five days after exposure. [ 2 ]