Usefulness of galactography for minimal noninvasive ductal carcinoma of the breast.

Two cases of noninvasive ductal carcinoma detected by galactography are reported with reference to our diagnostic methods of a patient with nipple discharge. Abnormal nipple discharge with no demonstrable breast lump is rare but an important clinical sign, since it is sometimes produced by malignant lesions. Non-contrast mammography and cytologic examination is of limited diagnostic value for abnormal nipple discharge. Galactography is necessary for the detection of ductal carcinoma in early stage. The most important factor in improving the survival statistics for breast carcinoma is early detection.