What is a needle biopsy?

A needle biopsy is a test in which the doctor inserts a needle through your skin to remove tissue or cells that are examined under a microscope by a pathologist.

When is it used?

Needle biopsies are used to find the cause of infections and inflammations and to determine whether or not a tumor is cancerous. If a cancerous tumor is found, a biopsy of the surrounding tissue may be done to see if the cancer has spread.

How do I prepare for a needle biopsy?

The doctor will give you any special instructions necessary to prepare for this procedure.

What happens during the procedure?

You will be given a local anesthetic.

A needle is inserted into the tumor or organ, and cells or tissue are removed. The needle may have a cutting tip to help remove tissue.

An aspiration biopsy is a type of biopsy in which the needle is attached to a syringe. The cells or tissue are suctioned out into the syringe, placed on a glass slide, and examined under a microscope (cytology examination) by a pathologist.

The doctor may use CT (computed tomography) or ultrasound scanning to find the exact location of the tumor. This may make the test more accurate.

What happens after the procedure?

Unless the doctor tells you otherwise, there are no special steps to take after the procedure.

What are the benefits of this procedure?

The procedure helps in diagnosis of various disorders.

What are the risks associated with this procedure?

• A local anesthesia may not numb the area quite enough and you may feel some minor discomfort. Also, in rare cases, you may have an allergic reaction to the drug used in this type of anesthesia.

• Internal bleeding may occur.

• Infection may occur internally and at the site of needle insertion.

You should ask your doctor how these risks apply to you.

When should I call the doctor?

Call the doctor immediately if:

• You develop a fever.

• Pain or symptoms change or worsen.

• You notice a lot of swelling or any unusual drainage from the biopsy area, especially bloody drainage.

Call the doctor during office hours if:

• You have questions about the procedure or its result.

• You want to make another appointment.