A fine needle biopsy (FNB) is a diagnostic tool used to evaluate tissue for abnormal cells, disease, cancer, or infection. A common type of FNB is a fine needle aspiration (FNA), which removes fluid and cells through a syringe attached to the needle. The procedure for FNA and FNB is basically the same, and they are sometimes done together.

Fine needle biopsies can be obtained from organs, soft tissues or tumors in many parts of the body including: breast, kidney, liver, lung, pancreas, prostate, thyroid, ovary or lymph nodes.

Exam preparation

• A CDI representative will call you prior to your appointment to provide you specific instructions, and review health and insurance information.
  
• Most blood thinners should be stopped 48 hours prior to the procedure depending upon your medication. Contact your doctor prior to discontinuing any medications.
  
• Bring prior x-rays or scans with you to your exam, if instructed.
  
• Please notify a member of CDI’s staff if you are nursing or if there is a chance you may be pregnant.
  
• Please arrive 15 minutes early to verify your registration.

During the exam – what to expect

• A local anesthetic is used to numb area where the needle will be inserted. Sedative medication may also be used.
  
• The doctor will position you for easiest access to the area for biopsy.
  
• The skin will be swabbed with a cleaning solution and may be draped with surgical towels.
  
• A thin, hollow needle will then be inserted through the skin to the biopsy site. The needle may be inserted more than once for positioning or to obtain multiple samples.
  
• Once the needle is in the proper position, tissue or fluid will be withdrawn for examination.
  
• You may feel a pinch, pressure, or nothing at all.
  
• A biopsy can take anywhere from a few minutes to 30-90 minute for a deeper biopsy requiring CT or ultrasound guidance.

After the Procedure – what to expect
Depending on where the biopsy was taken you may be monitored for bleeding or other complications The site will be bandaged and you will be given follow-up instructions.

You will not have to wait long for a diagnosis. Pathology reports are returned to your doctor within 24 to 72 hours. Once the test results have been completed and confirmed, your doctor will inform you if any further breast care follow up is required.

If you have additional questions about your appointment or our services, check out our Frequently Asked Questions or contact your local CDI center.