What is tonsillitis?

Updated: Apr 06, 2020
  • Author: Udayan K Shah, MD, FACS, FAAP; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

Tonsillitis is inflammation of the pharyngeal tonsils. The inflammation usually extends to the adenoid and the lingual tonsils; therefore, the term pharyngitis may also be used. Pharyngotonsillitis and adenotonsillitis are considered equivalent for the purposes of this article. Lingual tonsillitis refers to isolated inflammation of the lymphoid tissue at the tongue base.


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