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Illustrations
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Alternative names
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Definition
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How the test is performed
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How to prepare for the test
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How the test will feel
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Why the test is performed
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Normal Values
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What abnormal results mean
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What the risks are
Illustrations
Digestive system
Fat tissue biopsy
Alternative names
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Abdominal wall biopsy; Biopsy - abdominal wall fat pad
Definition
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Abdominal wall fat pad biopsy procedure involves removing a small portion of the abdominal wall fat pad. The procedure is done most often to test for amyloidosis.
How the test is performed
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Needle aspiration is the most common method of obtaining an abdominal wall fat pad biopsy. The skin of the abdomen is cleansed, and a local anesthetic may be used to numb the area. A needle is inserted through the skin and into the fat pad under the skin. A small core of the fat pad is removed with the needle and sent to the laboratory for analysis.
How to prepare for the test
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No special preparation is usually necessary.
Infants and children:
The preparation you can provide for this test depends on your child's age, previous experiences, and level of trust. For general information regarding how you can prepare your child, see the following topics:
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Infant test or procedure preparation (birth to 1 year)
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Toddler test or procedure preparation (1 to 3 years)
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Preschooler test or procedure preparation (3 to 6 years)
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Schoolage test or procedure preparation (6 to 12 years)
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Adolescent test or procedure preparation (12 to 18 years)
How the test will feel
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Although your health care provider may have numbed the skin, there can be some mild discomfort or pressure during the needle insertion. Afterward, the area may feel tender or bruised for several days.
Why the test is performed
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This test may be performed when amyloidosis is suspected.
Normal Values
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The fat pad tissues are normal.
What abnormal results mean
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In the case of amyloidosis, abnormal results will indicate the presence of amyloid, an insoluble protein fiber that impairs organ and tissue function.
What the risks are
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The risks are minimal. There is a slight risk of infection. There is also a minor risk of bruising or slight bleeding.
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