A mammogram is a low-dose x-ray that allows doctors, called radiologists, to look for changes in breast tissue and find breast cancer.
A mammogram can often find or detect breast cancer early, when it’s small and even before a lump can be felt, when it’s easiest to treat.
Mammograms can be used to check for breast cancer in women who have no signs or symptoms of the disease. This type of mammogram is called a SCREENING MAMMOGRAM. Screening mammograms usually involve two or more x-ray pictures, or images, of each breast. The x-ray images often make it possible to detect tumors that cannot be felt. Screening mammograms can also find microcalcifications (tiny deposits of calcium) that sometimes indicate the presence of breast cancer.
Mammograms can also be used to check for breast cancer after a lump or other sign or symptom of the disease has been found. This type of mammogram is called a DIAGNOSTIC MAMMOGRAM. Besides a lump, signs of breast cancer can include breast pain, thickening of the skin of the breast, nipple discharge, or a change in breast size or shape. A diagnostic mammogram can also be used to evaluate changes found during a screening mammogram or to view breast tissue when it is difficult to obtain a screening mammogram because of special circumstances, such as the presence of breast implants.
Sometimes diagnostic mammograms are used to screen women who were treated for breast cancer in the past.
The same machines are used for both types of mammograms. However, diagnostic mammography takes longer to perform than screening mammography and the total dose of radiation is higher because more x-ray images are needed to obtain views of the breast from several angles. The technologist may magnify a suspicious area to produce a detailed picture that can help the doctor make an accurate diagnosis.
To the Institute of Interventional Oncology, (IDOI México), is important to remind you that early detection of breast cancer with screening mammography means that treatment can be started earlier in the course of the disease, possibly before it has spread.