4/20/2021 E-Library - Information At Your Fingertips: Printer Friendly 1. The seafarer's work must involve the risk described herein; 2. The disease was contracted as a result of the seafarer's exposure to the described risks; 3. The disease was contracted within a period of exposure and under such other factors necessary to contract it; 4. There was no notorious negligence on the part of the seafarer. Colon cancer, also known as colorectal cancer or large bowel cancer, includes cancerous growths in the colon, rectum and appendix. With 655,000 deaths worldwide per year, it is the fifth most common form of cancer in the United States of America and the third leading cause of cancer-related deaths in the Western World. Colorectal cancers arise from adenomatous polyps in the colon. These mushroom-shaped growths are usually benign, but some develop into cancer over time. Localized colon cancer is usually diagnosed through colonoscopy. Tumors of the colon and rectum are growths arising from the inner wall of the large intestine. Benign tumors of the large intestine are called polyps. Malignant tumors of the large intestine are called cancers. Benign polyps can be easily removed during colonoscopy and are not life-threatening. If benign polyps are not removed from the large intestine, they can become malignant (cancerous) over time. Most of the cancers of the large intestine are believed to have developed as polyps. Colorectal cancer can invade and damage adjacent tissues and organs. Cancer cells can also break away and spread to other parts of the body (such as liver and lung) where new tumors form. The spread of colon cancer to distant organs is called metastasis of the colon cancer. Once metastasis has occurred in colorectal cancer, a complete cure of the cancer is unlikely. Globally, colorectal cancer is the third leading cause of cancer in males and the fourth leading cause of cancer in females. The frequency of colorectal cancer varies around the world. It is common in the Western world and is rare in Asia and in Africa. In countries where the people have adopted western diets, the incidence of colorectal cancer is increasing. Factors that increase a person's risk of colorectal cancer include high fat intake, a family history of colorectal cancer and polyps, the presence of polyps in the large intestine, and chronic ulcerative colitis. Diets high in fat are believed to predispose humans to colorectal cancer. In countries with high colorectal cancer rates, the fat intake by the population is much higher than in countries with low cancer rates. It its believed that the breakdown products of fat metabolism lead to the formation of cancercausing chemicals (carcinogens). Diets high in vegetables and high-fiber foods may rid the bowel of these carcinogens and help reduce the risk of https://elibrary.judiciary.gov.ph/thebookshelf/showdocsfriendly/1/66406 13/35