Colon Cancer
Overview
Colon Cancer is a common digestive tract malignant tumors of the gastrointestinal tract accounted paragraph 3. Good site for the rectum and sigmoid colon and rectum at the junction, accounting for 65% of the disease in more than 40-year-old, male to female ratio was 2-3:1.
Symptoms
(A) the early symptoms: abdominal distention may be the earliest, discomfort, indigestion-like symptoms appear before defecation habits change, such as the number of times then, diarrhea or constipation, abdominal pain before then.Later you can have it or mucus mucus pyogenic bloody.
(B) poisoning symptoms: cancer due to fester to absorb toxins and loss of blood, patients often can lead to anemia, low heat, fatigue, weight loss, swelling, such as performance, particularly in the areas of anemia, for a thin.
(C) the performance of intestinal obstruction: incomplete or complete obstruction low symptoms such as bloating, abdominal pain (pain or cramps), constipation, or close it. Abdominal examination shows that lung, intestinal, there is local tenderness, and the strong smell and Kang Chang Ming Yin.
(D) of the abdominal mass: tumor or retina, the surrounding tissue mass invasion of the bond, hardware quality, irregular shape, some with the intestine may have a certain activity, when the late tumor invasion rather than , The mass can be fixed.
(E) the performance of late: there is jaundice, ascites, edema, and other signs of liver metastases, as well as cachexia, rectum before the mass Au, supraclavicular lymph nodes, and so far the spread of tumor metastasis. Most colon cancer patients have been middle-aged and older, the median age was 45 years old, about 5% of the patients aged under 30 years of age. With colon cancer clinical focus of its location and size of which vary depending on the type of pathology.A lot of early colon cancer in patients with no clinical symptoms, but with the course of development and the increasing focus, you can generate a range of common symptoms of colon cancer, such as increased frequency of bowel movement, mucinous and Taibiandaixue, abdominal pain , Diarrhea or constipation, intestinal obstruction, as well as malaise, weight loss and anemia, and other symptoms. Central to transverse colon as a whole for the community, is divided into right and left colon colon in two parts, two of the cancer clinical do their own characteristics, it is as follows:
(A) right colon right colon, large cavity, the intestines for liquid manure, this cancer of the intestine were to break ulcers or intestinal cancer of the cauliflower-like, very few narrow ring, the obstruction in the unlikely event . But cancer often Kuipo bleeding, infection, associated with toxins absorbed, so the clinic does not have abdominal pain, changes in the Ambassador, abdominal mass, anemia, weight loss, or cachexia performance.
1. Abdominal discomfort for about 75% of patients have abdominal discomfort or pain, for the beginning of intermittent, continuing to post, often located in the right lower abdomen, much like chronic appendicitis attack. If the tumor is located in the liver and feces Department song than stem end, it may appear colic, and attention should be with identifying chronic cholecystitis. About 50% of patients loss of appetite, belch fullness, nausea and vomiting and so on.
2. Stool early changes in thin stool, blood, the increased frequency of defecation, and the formation of cancer-related ulcer.Tumor volume to be increased, the impact of the adoption of manure, alternating diarrhea and constipation. Small amount of bleeding, with the creep of the colon and stool full hybrid, the eye is not easy to see, but often occult blood test was positive.
3. Abdominal mass when they seek medical treatment for more than half of the patients with abdominal mass can be found. This may be the cancer tumor itself, or it may be parenteral infiltration and adhesion formation by the masses.The former than the form of rules, clearly outline; the latter do not form the rules. Mass General hard texture, once the secondary infection when the mobile limited, and there is tenderness.
4. Cachexia and anemia by about 30% of cancer patients Kuipo sustained bleeding and anemia occur, as well as weight loss, body weakness, or even whole body cachexia phenomenon.
(B) of the left colon left colon small intestine, intestinal feces was due to moisture absorption becomes dry. Left for the most invasive type of colon cancer, often caused by a narrow ring, the main clinical manifestations of acute and chronic intestinal obstruction. Smaller tumor size, both Kuipo less bleeding, no absorption of toxins, it is rare anemia, weight loss, cachexia, and so on, and it is difficult palpable mass.
1. Abdominal cramps associated with intestinal cancer is a major obstruction to the performance of a sudden, there abdominal cramps, abdominal distension with, hyper peristalsis, constipation and blocked the exhaust; chronic obstructive when it is manifested in the stomach discomfort, rain Recurrent abdominal pain, Chang Ming Yin hyperthyroidism, constipation, mucus and stool blood, part of the intestinal obstruction in some cases for several months before continuing into complete obstruction.
2. Defecation difficult half of the patients have symptoms such as the progress of the disease, constipation situation becomes magnified. Such as the location of the cancer lower, there may also be poor and defecation Lijihouzhong feeling.
3. Fecal blood or mucus in the left colon as a result of gradually forming faeces, blood and mucus and the faeces are not mixed, about 25% of the stool of patients with the naked eye observation can be seen in mucus and blood.
