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An abdominal wall fat pad biopsy is the removal of a small part of the abdominal wall fat pad. The procedure is done most often to test for amyloidosis.
Abdominal wall biopsy; Biopsy - abdominal wall fat pad
The health care provider cleans the skin on your belly area. Numbing medicine may be applied on the area. A needle is placed through the skin and into the fat pad under the skin. A small piece of the fat pad is removed with the needle. It is sent to a laboratory for analysis.
No special preparation is usually necessary.
You may have some mild discomfort or feel pressure when the needle is inserted. Afterward, the area may feel tender or be bruised for several days.
This test may be performed when amyloidosis is suspected.
The fat pad tissues are normal.
In the case of amyloidosis, abnormal results mean there is amyloid, a protein that deposits in tissues and impairs organ and tissue function.
The risks are minimal. There is a slight risk of infection. There is also a minor risk of bruising or slight bleeding.
Gertz MA. Amyloidosis. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 194.