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Intra-abdominal abscess, CT scan
Intra-abdominal abscess, CT scan


Meckels diverticulum
Meckels diverticulum


Definition:

An intra-abdominal abscess is an infected pocket of fluid and pus located inside the belly area (abdominal cavity). There may be more than one abscess.



Alternative Names:

Abscess - intra-abdominal



Causes, incidence, and risk factors:

An intra-abdominal abscess can be caused by a ruptured appendix, ruptured diverticula , a parasite infection in the intestines (Entamoeba histolytica), or other condition.

Risk factors include a history of appendicitis, diverticulitis, perforated ulcer disease, or any surgery that may have infected the abdominal cavity.



Symptoms:

Depending on the location, symptoms may include:

  • Abdominal pain and distention
  • Chills
  • Diarrhea
  • Fever
  • Lack of appetite
  • Nausea
  • Rectal tenderness and fullness
  • Vomiting
  • Weakness


Signs and tests:

A complete blood count may show a higher-than-normal white blood count.

A CT scan of the abdomen will usually reveal an intra-abdominal abscess. After the CT scan is done, a needle may be placed through the skin into the abscess cavity to confirm the diagnosis and treat the abscess.

Other tests may include:

  • Abdominal x-ray
  • Liver function tests,
  • Ultrasound of the belly area

Sometimes surgery called a laparotomy may be needed to diagnose this condition.



Treatment:

Treatment of an intra-abdominal abscess requires antibiotics (given by an IV) and drainage. Drainage involves placing a needle through the skin in the abscess, usually under x-ray guidance. The drain is then left in place for days or weeks until the abscess goes away.

Occasionally, abscesses cannot be safely drained this way. In such cases, surgery must be done while the patient is under general anesthesia (unconscious and pain-free). A cut is made in the belly area (abdomen), and the abscess is drained and cleaned. A drain is left in the abscess cavity, and remains in place until the infection goes away.

It is always important to identify and treated the cause of the abscess.



Support Groups:



Expectations (prognosis):

The outlook depends on the original cause of the abscess and how bad the infection is. Generally, drainage is successful in treating intra-abdominal abscesses that have not spread.



Complications:

Complications include:

  • Return of the abscess
  • Rupture of an abscess
  • Spread of the infection to the bloodstream
  • Widespread infection


Calling your health care provider:

Call your doctor if you have severe abdominal pain, fevers, nausea, vomiting, or changes in bowel habits.



Prevention:



References:

Fry RD, Mahmoud N, Maron J, Ross HM, Rombeau J. Colon and Rectum. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 18th ed. St. Louis, Mo: WB Saunders; 2008:chap.50.

Marrero F, Qadeer MA, Lashner BA. Severe complications of inflammatory bowel disease. Med Clin North Am. May 2008; 92(3): 671-86, ix.




Review Date: 7/17/2008
Reviewed By: Jenifer K. Lehrer, MD, Department of Gastroenterology, Frankford-Torresdale Hospital, Jefferson Health System, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional 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. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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789 Central Avenue, Dover, NH 03820
Phone: (603) 742-5252
Toll free: 1 (877) 201-7100