A 47 year old Chinese housewife with a silicone gel-filled implant mammoplasty carried out 10 years ago presented with a palpable painless lump in the right breast. Excision biopsy revealed infiltrating ductal carcinoma. Right simple mastectomy and axillary sampling was done followed by chemotherapy and radiotherapy. The history, safety, potential complications of silicone breast implants are reviewed and discussed.