The key characteristic of a benign tumor is that such a tumor
a. cannot cause brain damage.
b. does not require surgery.
c. has a distinct border.
d. spreads rapidly through infiltration of adjacent tissue.
e. mostly arises from neuron cell types.
Question 2
The key characteristic of a malignant tumor is that such a tumor
a. does not require surgery.
b. cannot cause brain damage.
c. has a distinct border.
d. spreads rapidly through infiltration of adjacent tissue.
e. can give off cancerous cells that in turn reach distant sites.