@Grivusangel -- So true. Ever heard of aggressive inflammatory breast cancer? That's when there's not a discrete tumor, but the cancer is diffused throughout the breast. I've had two co-workers who died from that -- and it's pretty rare.
It's bad because it is so aggressive, and chemo is a 50-50 shot on treating it. Radiation works for a while, but there's only so much radiation one person can have in their lifetimes. Then they have to stop.
One of my friends lived about 5 years after diagnosis (and a stem cell transplant). The other friend died about a year after diagnosis. I miss them both. A solid tumor is certainly preferable in most cases.