Categorised _'s general knowledge of cancer of colon

Categorised _'s general knowledge of cancer of colon
Cancer of colon ( Including rectal cancer) It is gland cancer of the large intestine, it is the common malignant tumour in the intestine. Its cause of disease has not been clear yet, but the emergence of a disease relates to many fat few fibrous diet, gland knotty polyp, colon blood fluke, non- specific ulcer colitis, bacillary dysentery, * amebic intestines to happen, closely related with with copies of disease also. About 40% of the cancer of colon is distributed over the rectum and form colon song of rectum second, the others are distributed over places such as second form colon, caecum, promoting colon, descending colon, transverse colon, liver, spleen song,etc..
Cancer of colon is mainly gland cancer, the others have and not differentiated cancer for mucus gland cancer, the great bodily form attitude can take the form of polyp, ulcer type,etc.. Cancer of colon can orbit and develop along the intestines wall, spread from head to foot or soak to the wall deep layer of intestines along the vertical foot-path of intestines, except that can infringe until lymphatic vessel, blood flow shift as part,it can plant in abdominal cavity or along suture, cut-out spread. See more the men above middle age, by the polyp canceration person of adenoma, age of onset is relatively small.
Divided into:
( 1) Cancer of colon of right side: Mainly shown as indigestion, weak, loses the appetite, diarrhoea, constipation, diarrhoea and constipation replacing, abdominal distension, abdominal pain, belly tenderness, belly piece and going on The position of the belly piece depends on the position where cancer locates, such as caecum cancer lies in right lower abdomen, rise cancer of colon lie in right belly, colon liver song cancer, on the right upper abdomen, the horizontal cancer of colon in the intersection of umbilicus department and nearby. In addition, can generate heat, become thin etc.. There can be intestinal perforation, complications such as abscess of limitation,etc. in later period.
( 2) The left cancer of colon: Because second the intersection of form and the intersection of colon and intestines most narrow and small forming acute angling with rectum, and excrement and urine form solid already in left colon, so is apt to take shape narrowly. Show as chronic intestinal obstruction of going on etc. often, patient have getting obstinate mostly all over secret, can also defecate in Israel the number of times increases. Obstruct mostly section under second the intersection of form and colon, vomit light scarce such as, and abdominal distension, abdominal pain, intestines chirp and the intestines type are obvious. Cancer can make piece outside of the excrement dye blood or mucus when broken routedly, even discharge the liquid of suppuration. Obstruct proximal intestines can form ulcer because of lasting prominent swelling, ischemic and oxygen deficiency, even cause and punch, in addition, the intestine can still take place in a large number of bleeding and abdominal cavity abscess takes shape.
( 3) Rectal cancer: Mainly shown as number of times of the stool increases, the excrement and urine is attenuated, take the blood and mucus, with on it is serious after being worried or not defecate by a net feeling,when cancer is spread around the rectum and infringed the nerve of sacral bone clump, can present the huge pain. Cancer involve prostate or bladder, can appear polyuria, the intersection of urine and the intersection of anxious, dysuria, urinate smoothly and hematuria,etc. and symptom for instance, and can form and lead to the genital fistula in bladder or women. Rectal cancer can cause intestinal obstruction too.
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