Ductography (also called galactography) is used to evaluate the cause of abnormal nipple discharge. It is most often used on women with spontaneous, clear or bloody nipple discharge from one breast.
A tiny hollow cannula with a blunt tip is inserted into the problem duct from the nipple. A small amount of radiopaque fluid (contrast media) is then gently introduced into the duct and mammograms are obtained. The contrast media outlines the inside of the duct and may demonstrate small growths that may be the cause of nipple discharge. While these growths are most often benign (non-cancerous), they are typically removed at surgery, allowing definitive diagnosis as well as curing the discharge.
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