Close Close

Diagnostic Breast Services


A galactogram is a procedure in which x-ray dye is injected into a breast duct prior to a mammogram. It is done to see if there is an abnormality within the duct that may be causing discharge. This procedure is also done to identify a duct with an abnormality prior to removal of it by your surgeon.

During the procedure the radiologist will attempt to express fluid from the breast duct. A tiny, hollow tube is inserted in the duct and injected with x-ray dye. A mammogram of the breast is taken. Many films are taken in order to see the breast ducts in more detail. The films are read by a radiologist. This procedure takes approximately 1 1/2 hours.

How to Prepare for this Procedure

  • This procedure does not require fasting. You may eat a light breakfast or lunch.
  • Prior to the procedure, do not squeeze or "express" your breast or nipple
  • Wear a comfortable bra and top that can be easily removed
  • Take your usual medications unless otherwise instructed by your physician
  • Bring a list of all your medications, including frequency and dosage
  • Limit caffeine 24 hours prior to the test
  • Bring a list of all your allergies

Schedule a mammogram

ACR AwardLahey Outpatient Center, Danvers was designated a Breast Imaging Center of Excellence by the American College of Radiology.