It is a malignant tumor that is to say, tumors formed by the uncontrolled proliferation of abnormal cells that invade surrounding structures and which tend to produce secondary tumors remotely (metastasis). Generally, it ‘s act by performing macroscopic adenocarcinoma most often ulcerative lesions infiltrating or vegetating.
colon_cancer

The colon is a terminal portion of the digestive tract, large diameter (hence its name from the large intestine) which ensures the continuity of the digestive tract between the intestine and the anus through the rectum. It forms a framework that surrounds the abdominal cavity and small bowel loops. Its length is 1m to 1.50m and its size decreases the cecum (8cm) to the rectum (4 cm).


Once the food digested, solid waste move through the colon whose main activity consists in fluid reabsorption into the rectum and anus until they are expelled from the body.

  • 2nd killer of both sexes confused.
  • 2nd cancer in women after breast cancer and 2nd in men after lung cancer.
  • 16,000 deaths per year including 52% among men.
  • 33,000 new cases each year.

Risk Factors.

  • Age: rare before 40 years, incidence and mortality increase after.
  • Inheritance: genetic factor that induces a story on a vulnerability, ATCD family.
  • Feeding Behavior: cancer typical of rich countries where diets are high in fat and animal protein and especially low in fiber. Excessive cooking food at high temperature, barbecues, are important factors.

  • Advanced digestive diseases:
    Crohn’s disease;
    ulcerative colitis;
    polypoid lesions and to a lesser extent, diverticula ..
  • The effects of physical inactivity, tobacco, alcohol, coffee, obesity must be taken into account.


Population at risk:

people with call signs (gastrointestinal disorders, blood in stool, weight loss, change in transit);
people with personal ATCD polyps or inflammatory diseases;
people with family ATCD polyps and cancers: from 45 years should consult a specialist who will make an endoscopy and / or radiological examination and regular examinations, which will be renewed at regular intervals.
asymptomatic population: it is the majority of people is from 45 years to be vigilant.
The benchmark treatment is surgical excision of the tumor, possibly associated with chemotherapy and / or radiotherapy.