Breast Biopsy (cont.)
What are the advantages and disadvantages of non-surgical procedures versus surgical breast biopsies?
Generally, non-surgical biopsies are less stressful, do not disfigure the skin, leave no internal scar to interfere with the accuracy of future mammograms, and minimize the risk of complications.
However, non-surgical biopsies are not always as reliable as surgical biopsies in producing a conclusive diagnosis. For this reason, some patients who undergo a non-surgical biopsy must also undergo a follow-up surgical biopsy.
What are the different types of breast biopsy procedures and what do they involve?
Breast biopsy procedures include:
How is a fine needle aspiration biopsy (FNAB) done?
A fine needle aspiration biopsy (FNAB) can be done in several different ways:
- Fine needle aspiration biopsy (FNAB) for palpable growths: A palpable growth is one that can be felt. The patient usually sits up while the doctor inserts a small hollow needle with a syringe to withdraw (aspirate) fluid and cells from the growth for testing. To guide the needle to the site, the doctor simply feels (palpates) the suspicious area. When the needle reaches the mass, the doctor suctions out a sample with the syringe. The doctor repeats this procedure several times. If the mass is a cyst, the withdrawn samples will consist mainly of fluid and the cyst may collapse, relieving any pain the patient feels. If the mass is solid, the samples will consist primarily of tissue cells.
By analyzing the samples immediately after their withdrawal, a doctor may be able to determine that they came from a cyst and simply discard them, diagnosing the growth as benign. In all other cases, fluid and tissue samples are placed on slides and then analyzed in a laboratory by a pathologist.
- Guided FNAB for Non-Palpable Growths: When a growth is too small or deep to palpate (feel), the doctor must locate it with one of several imaging techniques. First, the patient lies face down on a table with the breasts suspended through an opening. With stereotactic mammography, mammograms of the suspicious breast site are taken from different angles to form a virtual three-dimensional (stereotactic) image that precisely pinpoints the location of the suspicious area. The computer then uses a motor to guide a small hollow needle to the site to remove the samples. The withdrawn samples are then analyzed for the presence of cancer. Ultrasound and MRI are other imaging techniques that may be used to guide breast biopsies.
Next: How is a core needle biopsy (CNB) done? »
- MRI (Magnetic Resonance Imaging Scan) - Medical information on magnetic resonance imaging (MRI) used in detecting structural abnormalities of the body. Learn uses, risks, and how to prepare for an MRI scan
- Breast Cancer - Get the facts on breast cancer symptoms, signs, stages, types, research, risk factors, diagnosis, prevention information and treatment options: mastectomy, chemotherapy, radiation therapy.
- Ultrasound - Learn an ultrasound procedure, and conditions and diseases it assists in diagnosing and screening like tumors, cysts, heart conditions and more.
Latest Medical News
Cancer RSS