I had a bi lateral mastectomy 2.5 years ago, with Stage 1 breast cancer. No lymph node involvement. At my 6 month check up they found a lump in my underarm area. Painful, very small. I'm having an ultrasound this week. Anyone out there with Stage 1 and mastectomy had a recurrence? I'm worried because I know that a small amount of breast tissue remains, even after bi lateral mastectomy. My risk is considered low but I'm still worried that I'll be that person who gets this every two years…..seems to be how it kind of goes with me. Want to share with others who may have experienced this and what they found. Cancer? Other possibilities?