When a suspicious area in the breast cannot be felt (non-palpable), its location is marked by a fine wire. Under mammogram or ultrasound guidance, a needle is inserted into the area of concern.
The position of the needle is checked and when the radiologist is sure it is in the right place, a fine wire is inserted in the middle of the needle. The needle is removed and the wire is left in place until surgery.
Click here to return to Investigating a Change.