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Tonsillitis and Adenoiditis

Related Terms
* Adenoid Hypertrophy
* Adenotonsillitis
* Infective Adenoiditis
* Infective Tonsillitis
* Pharyngotonsillitis
* Septic Adenoiditis
* Septic Tonsillitis
* Suppurative Adenoiditis
* Suppurative Tonsillitis
* Tonsillar Hypertrophy
* Viral Tonsillitis
Differential Diagnoses
* Adenoid hypertrophy * Lymphoma * Pharyngitis * Strep throat|
* Family Physician * General Surgeon * Internal Medicine Physician * Otolaryngologist * Pediatrician|
Comorbid Conditions
* Chronic sinusitis * Pharyngitis * Severe nasal obstruction|
Factors Influencing Duration
Length of disability may be influenced by the underlying cause (bacterial or viral infection), method of treatment (antibiotics or surgery), response to treatment, or the presence of complications (presence of other infections).| Medical Codes

| ICD-9-CM:| 463, 474, 474.0, 474.00, 474.01, 474.02, 474.1, 474.11, 474.12, 474.9| Definition
Tonsillitis is an inflammation of the fleshy tissues that lie on either side of the back of the mouth at the top of the throat (pharyngeal or palatine tonsils). These tissues contain cells that are useful in fighting infection.

Inflammation of the tonsils can be caused by many contagious bacteria or viruses, including strains of streptococcus bacteria, adenovirus, influenza virus, Epstein-Barr virus, enterovirus, and the herpes simplex virus. One of the most frequent causes of tonsillitis is group A beta hemolytic Streptococcus pyogenes (GABHS), which is also the cause of strep throat; it is responsible for 30% of childhood tonsillitis and 10% of adult cases (Lauro).

Adenoiditis is an inflammation of the lymphoid tissue at the back of the roof of the mouth (the adenoids). Adenoiditis, or enlarged adenoids (adenoid hypertrophy), is unusual in adults because the adenoids normally shrink and almost disappear as the individual...
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