Definition of "Breast biopsy"

Last modified: 8 days



Breast biopsy are methods used to biopsy the breast.

Classification

The most appropriate method depends upon various factors, including the size, location, appearance, and characteristics of the abnormality. Methods include:

  • Fine needle aspiration (see page), which uses a fine needle and syringe to sample fluid from a breast cyst, or to remove clusters of cells from a solid mass
  • Core needle biopsy, which removes a small but solid samples of tissue using a hollow core needle. The needle used for CNB is larger than the needle used w/ FNA. The needle also has a special cutting edge allowing removal of a bigger sample of tissue. Thus, a realtively large sample can be removed through a small single incision in the skin. First the breast area is locally anesthetized. Then a needle is placed into the breast. It takes a few minutes to perform and is almost painless
    • For palpable lesions, the physician fixes the lesion w/ 1 hand, and performs a freehand needle biopsy w/ the other
    • For non-palpable lesions:
      • Stereotactic mammography, which is possible to pinpoint the exact location of a mass based on images taken from 2 different angles of the x-ray machine
      • U/S, where the radiologist/surgeon can watch the needle on the U/S monitor to help guide it into the areas of concern
      • PEM guidance (positron emission mammagraphy), where the lesion is targetted in 3D based on a PET image of the breast
    • Vacuum assisted biopsy is where there is also a vacuum technique used to assist the collection of the tissue sample. The needle normally uses a lateral opening, and can be rotated allowing multiple samples to be collected via a single skin incision

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Definition of Breast biopsy | Autoprac


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