Hello, I am a 18 y/o male in the past 2 days I have found a grape sized mass/lump in my left armpit, it is hard and doesn t move, I have hypertension, G6PD Deficiency, FSGS (Focal Segmental Glumerlosclerosis), I don t smoke or drink, I m on Losartan/hydrochlorthyozide, Mg Oxide, Tacrolimus, Mycophenolate (Celcept and Prograf), and Nifedical XL, someone in my family was recently dx with Breast Cancer, and I m just worried that this mass/lump might be malignant.