Known left breast DCIS with additional mass seen on MRI. A potential correlate for the MRI finding was noted on ultrasound and ultrasound guided biopsy is requested. Left ultrasound re-identified the target lesion for biopsy. The lesion to be targeted is a hypoechoic mass measuring 5 mm at the 12 o’clock position without increased vascularity, 4 cm from the nipple. The lesion was readily visible.PROCEDURE: The procedure and its risks, including bleeding, infection, and failure to diagnose, and expected benefits of ultrasound-guided core biopsy with percutaneous placement of a marking clip and post-procedure unilateral mammogram were discussed with the patient. Questions were answered. Consent was obtained both verbally and in writing. The time-out form was completed to confirm patient identity and side/type of procedure.The left breast was cleansed with chlorhexidine over the target area. Transducer was sterilely sheathed. Local anesthesia was obtained using 2% lidocaine superficially, with 1% lidocaine with 1:100,000 epinephrine at depth. A 3 mm incision was made in the skin with a #11 scalpel blade. Using aseptic technique, continuous ultrasound guidance and a inferolateral to superomedial approach, four 14-gauge core needle (InRad) specimens were obtained of the lesion. Targeting was judged excellent. Two specimens sank to the bottom of the prefilled container of 10% formalin. One specimen floated. Specimen quality was judged excellent.Specimens were sent to Pathology with an accompanying history sheet. Using continuous ultrasound-guidance a Hydromark clip was placed into the lesion in the usual manner. Pressure was held over the biopsy site until all bleeding subsided. The skin incision was closed with a Steri-Strip. Post-procedure digital left CC and ML views revealed the percutaneously placed clip to be in the 12:00 location. However, there is concern that this position may be too superficial to truly represent the MRI finding. No evidence of hematoma or other complication.A pressure dressing was positioned over the biopsy site and an ice pack positioned over the pressure dressing. Post-procedure instructions were reviewed with the patient both verbally and in writing. She tolerated the procedure well with no evident complications and left the Breast Imaging Department in stable condition.The procedure was performed by Dr. Schacht. Dr. Schacht was present during the procedure at all times.
Successful ultrasound-guided core biopsy of the left breast lesion and clip placement. Pathology is pending at this time.BIRADS: 4 - Suspicious Abnormality.RECOMMENDATION: X - No Letter.