The degree to which (or speed at which) a tumor grows and
A lack of differentiation. Thus, an anaplastic cancer is highly
undifferentiated and usually very aggressive.
An agent that causes cancer.
Cancerous cells that are still contained within the tissue
where they have started to grow and that have not yet become
invasive or spread to other parts of the body.
The large pouch forming the beginning of the large intestine,
into which the ileum section of the small intestine ends.
Resection of the colon.
A section of the large intestine extending between the cecum
and the rectum.
Complete elimination of the cancer with the result that the
specific cancer will not grow back.
The extent to which the cancerous cells resemble normal cells—less
resemblance means the cancer is less differentiated and more
The capacity of a cancer to infiltrate and destroy surrounding
Cancerous cells that have spread to a completely new location.
General term for a tumor, whether cancerous or noncancerous.
Cancerous cells return after treatment, either in the primary
location or as metastases (spread).
Absence of all evidence of a cancer after treatment.
surgical removal of all or part of an organ.
The percentage of people who survive for a given time period
after treatment (for example, the 5-year survival rate is
the percentage of people who survive 5 years).
Abnormal growth or mass.
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