BiopsyDefinition: A biopsy is the removal of a small piece of tissue for laboratory examination.
Alternative Names: Tissue sampling
How the test is performed: There are several different types of biopsies.
A needle (percutaneous) biopsy removes tissue using a hollow tube called a syringe. A needle is passed several times through the tissue being examined. The surgeon uses the needle to remove the tissue sample. Needle biopsies are often done using x-rays (usually CT scan or ultrasound ), which guide the surgeon to the right area.
An open biopsy is a surgical procedure that uses local or general anesthesia. This means you are relaxed (sedated) or asleep and pain-free during the procedure. The procedure is done in a hospital operating room. The surgeon makes a cut into the affected area, and the tissue is removed.
Closed biopsy uses a much smaller surgical cut than open biopsy. A small cut is made so that a camera-like instrument can be inserted. This instrument helps guide the surgeon to the right place to take the sample.
How to prepare for the test: Ask your health care provider if you need to stop taking any medications before surgery, particularly those that can make you bleed. Such medications include aspirin, Coumadin, and nonsteroidal anti-inflammatory medications (NSAIDs).
Also mention any herbal preparations you are taking. Never stop or change your medications without first talking to your health care provider.
How the test will feel: In a needle biopsy, you will feel a small sharp pinch at the site of the biopsy. In an open or closed biopsy, local or general anesthesia is often used to make the procedure pain-free.
Why the test is performed: A biopsy is most often done to examine tissue for disease.
Normal Values: The tissue removed is normal.
What abnormal results mean: An abnormal biopsy means that the tissue or cells have an unusual structure, shape, size, or condition.
This may mean you have a disease, such as cancer, but it depends on your biopsy.
Special considerations: Please see the following list of tests or procedures to get more information on why each one is performed, how it is performed, the risks, and normal and abnormal results:
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