question: found i lump under my left armpit in November had a mammogram down since i was due. Everything looked good, they asked for a ultrasound and still found nothing. Went back in December for another mammogram still ok but they wanted a MRI just had it down last friday and it shows a lump and its tracing down my armpit. Now they want another ultrasound. Radioligist says it could be just infection but breast surgeon says no. Not having the Utrasound for another week and worried .my sister died at 42 from breast cancer was diagnosed at 37 .