A normal throat<unk>  is a type of inflammation caused by an upper respiratory tract infection. It may be classified as acute or chronic. Acute<unk>  may be catarrhal, purulent, or ulcerative, depending on the causative agent and the immune capacity of the affected individual. Chronic<unk>  may be catarrhal, hypertrophic, or atrophic. Tonsillitis is a subtype of<unk> . If the inflammation includes both the tonsils and other parts of the throat, it may be called pharyngotonsillitis or tonsillopharyngitis. Another subclassification is nasopharyngitis (the common cold).
Pharyngitis
Epiglottitis
Laryngitis
Retropharyngeal abscess
Sinusitis
Thyroiditis
Tonsillitis
Streptococcal pharyngitis