When a glass or a ceramic plate is dropped, it makes a loud noise as it crashes on the ground. When a window shatters, a figurine falls off a shelf, or a picture falls off the wall, it makes a noise. Why not, then, a heart when it breaks? It doesn’t seem right that something so devastating, so life changing, can occur without a sound.
- the type of brain cell from which the tissue came, which gives the tumor a name like GBM
- the speed at which the cells are dividing, which results in an assignment of a grade for the tumor, such as Grade III  or Grade IV . In general, Grade I means that the tumor tissue is “low grade,” or very slow-growing, whereas Grade IV indicates that the tumor is growing at a very aggressive rate.