[Breast cancer at the site of an implanted pacemaker]

We report here an 81-old-female patient who had a permanent pacemaker implanted in the right chest and who developed breast cancer near the site of the implanted generator. The cancer was diagnosed as stage I adenocarcinoma and radical mastectomy preserving pectoral muscles was indicated. During temporary pacing via the femoral approach, the pacemaker lead was transferred to the left subclavicular area crossing before the sternum and the generator was reimplanted in the left chest without use of lead extension kit. After reimplantation of the generator, radical mastectomy was performed. Clinical course was uneventful after the operation without infection or pacing failure. For the patient who needs surgical procedure in the site of implanted pacemaker generator, this technique of reimplantation is one of the useful choices.