Stages of Colon Cancer
Here
is a brief summary of a commonly used four-stage account of where the cancer
is at the beginning of each stage.
Stage 0:
The
cancer is in a very early stage. It is known as carcinoma in situ. It has not
grown further than the inner layer of the colon.
Stage 1:
The
cancer has grown into the next layer of tissue, but it has not reached the
lymph nodes or other organs.
Stage 2:
The
cancer has reached the outer layers of the colon, but it has not spread beyond
the colon.
Stage 3:
The
cancer has grown through outer layers of the colon and it has reached one to
three lymph nodes. It has not spread to distant sites.
Stage 4:
The
cancer has reached other tissues beyond the wall of the colon. As stage 4
progresses, the cancer reaches distant parts of the body.
Comments
Post a Comment