As a first step the nipple is cleaned and disinfected with alcohol. After application of topical anesthetic, a thin cannula is inserted into the milk ducts. Next, a small amount of contrast agent (a compound that provides a more accurate picture of the location, size, and type of the lesion) is injected into the duct with a very thin, blunt-tipped needle.
Then, mammography is performed.
The patient stands in front of the X-ray machine and then places her breasts on the surface containing the X-ray film. The breasts are then compressed with a plastic sheet so that as few formulas as possible are projected on top of each other during the recording, and so that the breast does not move and a good quality, evaluable recording is made. Breast compression can cause discomfort depending on individual sensitivity.