A 55-year-old woman diagnosed with left breast adenocarcinoma was evaluated for a palpable mass on her left chest. At age 30 years, she underwent modified radical mastectomy for stage III disease and immediate placement of a silicone implant with latissimus dorsi flap reconstruction. At age 55 years, she was found to have a 4-cm palpable mass in the surgical field. Metastatic workup revealed evidence of a 4-cm subpectoral mass lateral to the breast implant with positive uptake on computed tomography (CT) and positron emission tomography. The patient continued to be asymptomatic; conservative, close follow-up was planned.