The common macroscopic types of right sided colorectal cancer are:

The common macroscopic type of right-sided colorectal cancer is the ulcer type.

Answer: Yu Zhenghua: c

The most common gross form of right-sided colon cancer is a lumpy type that grows into the lumen. Item A, infiltration along the intestinal wall, mostly occurs in the left colon.

Answer]: A The common histological types of colorectal cancer are adenocarcinoma, mucinous carcinoma and undifferentiated carcinoma. Adenocarcinoma is the most common.

The most common pathological classification of colorectal cancer is ().

a.Swollen or lumpy.

b.Cauliflower stove beam type.

c.Ulcerative type.

d.Diffuse.

e.Infiltration.

Correct answer: c

Answer]: A The intestinal lumen of the right colon is large, the stool is fluid, and the cancer is mostly lumpy or ulcerative. Clinical manifestations are:

Abdominal pain: is the most common symptom. The first pin is intermittent dull pain or paroxysmal pain, and then gradually changes to persistent abdominal pain; Blood in the stool, abdominal mass:

About half of the patients have changes in stool habits and textures, and many patients may find an abdominal mass; There are obvious symptoms of cancer poisoning in the whole body: such as fever, nausea, fatigue, decreased stomach intake, anemia, weight loss and other symptoms. Therefore, the answer should be A.

1) Because left-sided colorectal cancer is easy to cause circumferential stenosis, the clinical manifestations are: intestinal obstruction, abdominal distention, abdominal colic, thin stool shape, bloody stool or pus and bloody stool, and a mass can be palpable on digital rectal examination.

2) Colorectal cancer on the right side is mostly bulging type, and the clinical manifestations are mostly stupid: intestinal dysfunction, dull pain in the right abdomen, mushy stool, positive occult blood, right abdominal mass, progressive anemia, and low-grade fever.

Answer]: The left colon has a thin intestinal lumen and dry and hard stool. Left colon cancer is often invasive and prone to annular stenosis, which is mainly manifested as acute and chronic intestinal obstruction.

The mass is small in size, there is neither ulceration and bleeding, nor toxin absorption, and symptoms such as anemia, emaciation, and cachexia are rare, and it is difficult to palpate the mass.

The right colon has a large lumen, the stool is liquid, and the cancer is mostly ulcerative or cauliflower-shaped carcinoma, which rarely forms annular stricture and obstruction does not occur frequently. If the cancer ulcerates and hemorrhages, secondary to frontal fissure and infection, accompanied by endogenous toxin absorption, abdominal pain, stool changes, abdominal mass, anemia, emaciation, or cachexia may be present.

Colorectal cancer causes anemia and weight loss on the right side, and abdominal pain and bloody stools on the left side.

According to the 103-year cancer registry report released by the Ministry of Health and Welfare, among the 10 major cancers, colorectal cancer has been diagnosed in 15,764 people, and the new cases have been ranked first among the top 10 cancers for 9 consecutive years. The doctor reminded that colorectal cancer is still divided into left and right, and there will be different symptoms; However, colorectal cancer is usually asymptomatic in the early stages, and when symptoms do, it is often advanced, so regular screening is important.

Anemia and weight loss on the right side and abdominal pain and bloody stools on the left

Dr. Liang Jintong, Director of the Department of Colorectal Surgery at National Taiwan University Hospital and Chairman of the Taiwan Colorectal Medical Association, said that the symptoms of colorectal cancer are related to the location of cancer cells. If cancer cells invade the sigmoid colon or rectum on the left side of the large intestine, symptoms such as abdominal pain, bloody stools, and changes in bowel habits may occur.

Regular screening at age 50 colonoscopy can remove precancerous lesions

In fact, colorectal cancer can be detected through regular screening to find out precancerous lesions, and the progression to colorectal cancer can be prevented early**; Dr. Liang Jintong suggested that people over the age of 50 should develop the habit of regular screening for colorectal cancer in order to detect the lesion early and grasp the **** stage; If the fecal occult blood reaction test finds abnormalities, it is necessary to do further colonoscopy, if the colonoscopy finds colorectal polyps or precancerous lesions, it can be removed** to prevent colorectal cancer.

Develop the habit of observing stool and seek medical attention as soon as there is an abnormality

Dr. Liang Jintong emphasized that colorectal cancer has been the most common among the top 10 cancers for 9 years, and the reasons are related to the aging population, the popularization of screening and the westernization of lifestyle and dietary habits. People should pay more attention to their diet, eat less red meat, and exercise more, and should also develop the habit of observing feces.

Supply Article 33459 Keywords: Anemia, Fecal occult blood, Colonoscopy, Liang Jintong, Weight loss, Bloody stool.

Which of the following parts of colorectal cancer is most commonly occurring? （）a.Transverse colon.

b.Descending colon.

c.Rectum. d.Sigmoid.

e.Blind mountains brighten the intestines.

Correct answer: c