Mammary duct ectasia.
D000328:Adult; D001940:Breast / Q000002:abnormalities*; D001941:Breast Diseases / Q000473:pathology*; D003251:Constriction, Pathologic; D004108:Dilatation, Pathologic; D005260:Female; D006801:Humans; D009558:Nipples / Q000002:abnormalities*