For me it was a half of a golf ball size lump on my pelvis. I had no other symptoms so not sure how long it was lurking, but it was all the way into my bone marrow. When I saw it I was like Ugh, that does not look right. I was hoping it was a hernia or something like that. Never in a million years did I think it was cancer. The first scan showed a potential cancer or leukemia. The biopsy showed a potentially aggressive Follicular Lymphoma. That turned out to be true as all treatments worked but I would relapse at 6 months each time. Even after a stem cell transplant which was devasting after going through all of that. I entered into a clinical trial for CAR-T-Cell Therapy and it has saved my life. 5 years and counting, the drug Yescarta was FDA approved based on the trial.