Ontogenetic tumor growth and evolution equations.

We review the theory of ontogenetic tumor growth by discussing different evolution equations which account for the relevant dynamics. It is shown that most of the equations proposed can be treated from a unitary point of view. We extend the West ontogenetic evolution model to cancer growth and show that the relevant predictions agree with the experimental data from breast and prostate cancer. We finally prove that aging effects can be easily included in the theoretical scheme proposed. [ABSTRACT FROM AUTHOR]