Colorectal Cancer
Colorectal Cancer is the second most common cancer in the
United States, striking 140,000 people annually.. and causing
60,000 deaths. That's a staggering figure when you consider
the disease is potentially curable if diagnosed in the early
stages.
Who is at risk?
Though colorectal cancer may occur at any age, more than
90% of the patients are over age 40, at which point the
risk doubles every ten years. In addition to age, other
high risk factors include a FAMILY history of colorectal
cancer and polyps and a PERSONAL history of ulcerative colitis,
colon polyps or cancer of other organs, especially of the
breast or uterus.
How does it start?
It is generally agreed that nearly all colon and rectal
cancer begins in benign polyps. These pre-malignant growths
occur on the bowel wall and may eventually increase in size
and become cancer. Removal of benign polyps is one aspect
of preventive medicine that really works!
What are the symptoms?
The most common symptoms are rectal bleeding and changes
in bowel habits, such as constipation or diarrhea. (These
symptoms are also common in other diseases so it is important
you receive a thorough examination should you experience
them.) Abdominal pain and weight loss are usually late symptoms
indicating possible extensive disease.
Unfortunately, many polyps and early cancers fail to produce
symptoms. Therefore, it is important that your routine physical
includes colorectal cancer detection procedures once you
reach age 40. Those detection methods are a digital rectal
exam and a chemical test of stool for blood. A sigmoidoscopy
- the inspection of the lower bowel with a lighted tubular
instrument - should be part of routine physical check-ups.
How is Colorectal Cancer treated?
Colorectal cancer requires surgery in nearly all cases for
complete cure. Radiation and chemotherapy are sometimes
used in additicin to surgery. Between 80-90% are restored
to normal health if the cancer is detected and treated in
the earliest stages. The cure rate drops to 50% or less
when diagnosed in the later stages. Thanks to modern technology,
less than 5% of all colorectal cancer patients require a
colostomy, the surgical construction of an artificial excretory
opening from the colon.
Can Colon Cancer be prevented?
There are steps that reduce the risk of contracting the
disease. One way is having benign polyps removed by an outpatient
procedure called colonoscopy. In addition to removing the
polyps, the long flexible tubular instrument used in the
procedure provides a more thorough bowel examination.
Though not definitely proven, there is some evidence that
diet may play a significant role in preventing colorectal
cancer. As far as we know, a high fiber, low fat diet is
the only dietary measure that might help prevent colorectal
cancer.
Finally,you must be aware of changes in your bowel habits
and make sure bowel examinations are included in routine
physicals once you fall under the "high risk"
category.
Can Hemorrhoids lead to Colon Cancer?
No, but hemorrhoids may produce symptoms similar to colon
polyps or cancer. Should you experience these symptoms,
you should have them examined and evaluated by a physician,
preferably by a colon and rectal surgeon.