Cancer of large intestine is the most dangerous malignant tumor where cells originate from mucosa. The tumor affects most often blind intestine, sigmoid or rectum.
Developing of tumor is promoted by prevalence in food of meat, flour, fat products, and small content of vegetables. Constipations, polyps, inflammatory diseases of colon, advanced age, genetic predisposition influence. At excess of animal fats the substances causing development of tumor are formed. At constipations time of influence of these substances on mucosa is enlarged.
Cancer cells quickly breed. The growing tumor enlarges, fills an intestine lumen. An intestinal obstruction develops. At tumor growth into intestine wall vessels are destroyed, there is an intestinal bleeding.
Clinical symptoms appear when the tumor got the significant sizes. First of all, abdominal pains – usually dull, aching, long. The patient is disturbed by constipations, emergence of fresh and changed blood in feces, small temperature increase, rumbling and abdominal distention, paleness, small appetite, loss of weight, and weakness.
The main way of cancer therapy is surgical. Radiation therapy and chemotherapy is used in addition. The type of the operation is defined by the tumor locating, its size, and existence of metastasis. If the tumor is small, located conveniently for excision, it is deleted completely, keeping normal functioning of the intestine of the patient. At a big tumor an artificial outlet opening of the intestine is made, bringing it to the patient’s abdomen.