You may have an ultrasound examination before a mammogram if you are young or presently breastfeeding and find a lump. This is because in these cases the breast tissue is denser and ultrasound will give more information than an x-ray.

What to expect
For this, you will lie on a bed with your breast exposed. The  scanner head will be moved over your breast after a contact gel has been applied.  At the same time the internal images will appear onto a TV screen and pictures are taken of these.

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