A follow-up mammogram is needed when the radiologist believes something on the scan could use a closer look. This second mammogram is called a diagnostic mammogram. According to the American Cancer Society, nearly 10% of all women who have a mammogram will need further testing.
More pictures are taken during a diagnostic mammogram to evaluate any areas of concern. An ultrasound test is used to see if there are any further concerns. An ultrasound is not painful. It helps the team look more closely at a mammogram.