Question:
I am seeking any information on the new non-invasive procedure for breast biopsies called mammotome. Any information you provide would be appreciated.
Answer:
A breast biopsy is the removal of a sample of breast tissue for examination and is the only definitive way to determine if an abnormality detected on breast examination or mammogram is benign (not cancerous) or malignant (cancerous).
Fortunately, 80 percent of biopsies result in a benign diagnosis. However, if cancer is present, it is crucial to know the type and stage of the disease. Early detection and accurate diagnosis means more treatment options are available and a complete recovery is more likely.
Open surgical biopsy has traditionally been used to obtain tissue from a "suspicious" breast lump. Performed in an operating room, it requires general anesthesia. The surgeon makes an incision in the breast and removes tissue, typically about the size of a golf ball, and closes the incision with sutures. Most patients recover quickly, but a few develop post-operative pain or disfigurement of the breast.
Stereotactic procedures for obtaining breast tissue are minimally invasive biopsy methods with complications. These include the Mammotome breast biopsy and core needle biopsy.
The patient lies face down on a special table with the breast protruding through a hole in the table, which allows for a clear mammographic image of the area. The table is connected to a computer that processes digital images. Placement of the sampling device is guided by a computerized system using x-rays.
In a core needle biopsy, the physician makes a small skin incision through which a needle is placed into the lesion to obtain tissue samples for analysis. A single sample is obtained each time the device is fired, so multiple insertions into the abnormality (through one skin incision) are needed to obtain sufficient breast tissue. Usually, five to 10 samples are taken.
The Mammotome Breast Biopsy System requires a smaller incision and a local anesthetic. Multiple tissue samples are obtained with one insertion (other methods require multiple insertions). When the biopsy is completed, the tissue samples are sent to a laboratory for analysis and pathologic results.
Mammotome biopsy is less uncomfortable than traditional biopsy, takes less time, reduces scarring, and the patient can return to routine activity immediately. It also minimizes the removal of surrounding healthy tissue. Of course, as with any medical procedure, it is best to discuss your options with your doctor.
As with other forms of breast biopsy, follow up is important. Even when the results are benign, patients should schedule a follow-up appointment, have a new mammogram at the prescribed time and perform monthly breast-self exams. According to the American Cancer Society, women age 40 and older should have a screening mammogram every year. Between ages 20 and 39, women should have a clinical breast examination by a health professional every three years and a baseline mammogram between ages 35 to 40. After age 40, women should have a mammogram and a breast exam by a health professional every year.