Symmetry can be a beautiful thing, and one of the things radiologists assess when we are looking at your mammogram. But just as your face and your feet may be slightly different from side to side, so can your breasts. At least a quarter of the population has two different sized breasts.
The fear this sentence creates is real, but can be quieted by facts. Most abnormalities on a mammogram are NOT breast cancer. During a screening mammogram, the breast is X-rayed in two different positions: from top to bottom and from side to side.
The criteria for an asymmetry includes that it is seen only on one projection, the borders are not convex, or the center is not denser than the periphery e. Global asymmetry is most commonly a normal variant and is discussed separately. An asymmetry or focal asymmetry that is unchanged over at least 2 years does not deserve attention.
An increasing number of breast lesions are being detected incidentally on CT. The aim of this study was to investigate the rate of referrals to the breast unit for assessment of lesions identified on CT and the resulting yield of previously undiagnosed breast malignancies from this pathway. A retrospective review was undertaken of CT examinations conducted over a period of 14 years.
A common abnormality seen on mammogram results is breast asymmetry. Breast asymmetry is usually no cause for concern. Breast asymmetry occurs when one breast has a different size, volume, position, or form from the other.
A more recent article on common breast problems is available. See related patient information handout on breast painwritten by Amy S. Weichel, D.
A mammogram is an X-ray of the breast. Medics will also perform a careful clinical exam. However, sometimes a radiologist will delay the request for a biopsy until ultrasound confirms a mass.
During a mammogram, you stand in front of an X-ray machine designed for mammography. A technician places your breast on a platform and positions the platform to match your height. The technician helps you position your head, arms and torso to allow an unobstructed view of your breast.