WHAT DOES GENETICS HAVE TO DO WITH COLON AND RECTAL CANCER?
Genes are the biochemical information that we inherit from each of our parents. They determine your physical features and your disposition to certain diseases. Hereditary genetic factors affect most or all cancers.
ARE THERE DIFFERENT TYPES OF COLON AND RECTAL CANCER?
Sporadic Colon Cancer 50-60%. No family history.
Familial Colon Cancer 30-40%. Cancers that ‘run’ in families.
Inherited Colon Cancer Syndromes 4-6%. A specific genetic abnormality.
WHAT IS SPORADIC COLON CANCER?
Sporadic colon cancer usually occurs over the age of 60, without prior family history. It is the first member of the family to have colon and rectal cancer.
WHAT IS FAMILIAL COLON CANCER?
Some families are predisposed to colon and rectal cancer. A first degree relative or earlier than the age of 50 when diagnosed. The risk for other family members is doubled. Colon cancer screening should start at age of 40 or earlier.