Tuesday, August 17, 2010

Pharyngitis, Infectious Disease in The Pharynx

Pharyngitis is sore throat caused by infection or inflammation of the back of the throat or pharynx. Most people associated with pharyngitis and tonsillitis, but there are many causes of bacterial pharyngitis.

Usually, the cause of pharyngitis can not be determined solely on clinical criteria, largely coincide with some exceptions.

Streptococcal pharyngitis

Easily the most important pathogen is the cause of pharyngitis is Streptococcus pyogenes, or group STREP. Clinically oedematous inflammation of the throat and observed with an infected person complains of a sore throat and difficulty swallowing. Today is also a fever, headache, swollen glands, red papules sometimes a rash.

Other types of group STREP particularly beta-hemolytic C and G, can cause similar symptoms as a STREP group, only a little more gently. STREP only group associated with rheumatic fever as a sequel.

Arcanobacterium haemolyticum pharyngitis

The bacteria that causes this type of sore throat strep throat is very similar, even in this eruption in some patients. A. haemolyticum pharyngitis often in young adults and adolescents, unlike strep throat, which is mainly a disease of children.

Viral pharyngitis

Viruses are by far the most common cause of pharyngitis in adults and children. Epstein-Barr virus (infectious mononucleosis) is the virus most often implicated with cold viruses, adenoviruses and rhinoviruses and coronaviruses are also common.

People with pharyngitis caused by adenovirus viral conjunctivitis often at the same time. The symptoms are slightly different from a bacterial throat infection and culture "rapid tests are needed to rule out bacterial pharyngitis.

Gonococcal pharyngitis

Many factors of sexually transmitted diseases can also cause pharyngitis, including chlamydia and syphilis.

The infection of the mouth and throat gonorrhea may be asymptomatic or symptoms may be present and can be seen with disseminated infection.

May be suspected in patients with oral sex. If the doctor suspects gonococcal pharyngitis, he or she must indicate whether the appropriate media is used for bacteriological culture.


Although very rare in the United States less than 10 cases reported per year, can occur sporadically. It is very easy to distinguish red spots as shown in streptococcal pharyngitis.

Diphtheria is characterized by a thick membrane that covers the back of the throat swelling of the tissues surrounding the gray-white.

Specimens from suspected cases of diphtheria are usually referred to public health laboratories for identification.

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