Echinococcosis (patient information): Difference between revisions
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Revision as of 17:42, 4 December 2012
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Echinococcosis |
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Echinococcosis On the Web |
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Overview
Echinococcus is an infection caused by the Echinococcus granulosus or Echinococcus multilocularis worm
What are the symptoms of Echinococcosis?
A liver cyst may produce no symptoms for 10 - 20 years until it is large enough to be felt by physical examination. Symptoms include:
- Pain in the upper right part of the abdomen
- Bloody sputum
- Chest pain
- Cough
- Fever
- Severe skin itching
What causes Echinococcosis?
Echinococcus is common in:
- Africa
- Central Asia
- Southern South America
- The Mediterranean
- The Middle East
- In the United States, the disease is very rare. However, it has been reported in California, Arizona, New Mexico, and Utah.
Humans become infected when they swallow eggs in contaminated food. The infection is carried to the liver, where cysts form. Cysts can also form in the:
- Brain
- Bones
- Kidney
- Lungs
- Skeletal muscles
- Spleen
Who is at highest risk?
Risk factors include being exposed to:
- Cattle
- Deer
- Feces of dogs, wolves, or coyotes
- Pigs
- Sheep
When to seek urgent medical care?
Call your health care provider if you develop symptoms of this disorder.
Diagnosis
A physical examination may show signs of:
- Abdominal pain
- Problems with the skin and other organs
- Shock
The following tests may be done to find the cysts:
- Abdominal CT scan or ultrasound
- Abdominal X-ray
- Blood test
- Chest x-ray
- Liver function tests
- Thoracic CT scan or ultrasound
Treatment options
Many patients can be treated with albendazole or mebendazole. These medications are often used for up to 3 months. Another drug, praziquantel, may be helpful combined with albendazole or mebendazole.
The cysts may be removed with surgery, if possible. This can be a complicated surgery.
Where to find medical care for Echinococcosis?
Directions to Hospitals Treating Echinococcosis
What to expect (Outlook/Prognosis)?
If the cysts respond to oral medication, the likely outcome is good.
Possible complications
The cysts may break open (rupture) and cause severe illness, including:
- Fever
- Low blood pressure
- Shock
- The cysts may also spread throughout the body.
Prevention
In areas where the disease is known to occur, health education and routinely removing tapeworms from dogs can help prevent the disease.