Table of Contents Cancer is a varied group of diseases that have
in common the uncontrolled proliferation and spread of abnormal
cells, which may invade other tissues of the body. The different
types of cancer vary not only in their site or tissue of origin,
but also in other factors, including cell morphology, rate of
growth, and method of spread. Through June 13, 2007, the Indiana
State Cancer Registry has recorded 155,790 cases of cancer that
were newly diagnosed from January 1, 2000 through December 31,
2004. (Note: basal and squamous cell carcinomas of skin are not
collected.) The incidence tables include 146,457 cancers, which
includes 2,795 cases of in situ bladder cancer. All other in
situ cancers (n = 9,333) are excluded from the incidence tables.
The exclusion of in situ cases allows comparisons with national
data and is based on the major differences in prognosis and
treatment between in situ and invasive cancers. Interpreting the
pathologist's description of invasion for urinary bladder tumors
has