Skip navigation
MedlinePlus Trusted Health Information for You U.S. National Library of MedicineNational Institutes of Health
Contact Us FAQs Site Map About MedlinePlus
español Home Health Topics Drugs & Supplements Medical Encyclopedia Dictionary News Directories Other Resources

 

Medical Encyclopedia

Other encyclopedia topics:  A-Ag  Ah-Ap  Aq-Az  B-Bk  Bl-Bz  C-Cg  Ch-Co  Cp-Cz  D-Di  Dj-Dz  E-Ep  Eq-Ez  F  G  H-Hf  Hg-Hz  I-In  Io-Iz  J  K  L-Ln  Lo-Lz  M-Mf  Mg-Mz  N  O  P-Pl  Pm-Pz  Q  R  S-Sh  Si-Sp  Sq-Sz  T-Tn  To-Tz  U  V  W  X  Y  Z  0-9 

Peritonsillar abscess

Printer-friendly versionEmail this page to a friend
Contents of this page:

Illustrations

Lymphatic system
Lymphatic system
Throat anatomy
Throat anatomy

Alternative Names    Return to top

Quinsy; Abscess - peritonsillar

Definition    Return to top

Peritonsillar abscess is a collection of infected material in the area around the tonsils.

See also: Retropharyngeal abscess

Causes    Return to top

Peritonsillar abscess is a complication of tonsillitis. It is most often caused by a type of bacteria called group A beta-hemolytic streptococcus.

Peritonsillar abscess is generally a disease of older children, adolescents, and young adults. It has become relatively uncommon since the use of antibiotics to treat tonsillitis.

Symptoms    Return to top

One or both tonsils become infected. The infection may spread over the roof of the mouth (palate), and to the neck and chest, including the lungs. Swollen tissues may block the airway, which is a life-threatening medical emergency.

The abscess can break open (rupture) into the throat, infecting or further blocking the airway.

Symptoms of peritonsillar abscess include:

Exams and Tests    Return to top

An examination of the throat and neck may reveal redness and swelling of one or both tonsils, the throat, neck, and chest.

The following tests may be done:

Treatment    Return to top

If bacteria is causing the infection, you will be given antibiotics. Painkillers may be prescribed, if needed.

The abscess will need to be drained. This requires surgery. Surgery to remove the tonsils (tonsillectomy) may be done.

Outlook (Prognosis)    Return to top

Peritonsillar abscess usually goes away with treatment, although the infection may return in the future.

Possible Complications    Return to top

When to Contact a Medical Professional    Return to top

Call your health care provider if you have had tonsillitis and you develop symptoms of peritonsillar abscess.

Call your health care provider if you have:

Prevention    Return to top

Quickly and completely treating tonsillitis, especially bacterial tonsillitis, may help prevent an abscess.

Update Date: 10/10/2008

Updated by: Alan Lipkin, MD, Otolaryngologist, Private Practice, Denver, Colorado. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M. Logo

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 1997-2009, A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.