Diagnosis of Colon Cancer-The simplest way to detect cancer of the rectum is to insert a finger into the rectum physician, the rectal examination. This examination can be done in an outpatient clinic, takes less than 5 minutes and causes minimal discomfort. However, this method can only detect cancer that is located between the last 5 to 8 cm of the rectum
For cancer located further inside the colon, can sigmoidoscopy or colonoscopy examination. Binoculars flexible optical fiber is inserted through the rectum into the colon. Through binoculars it is possible taking small pieces of tissue for testing grows. This procedure can be performed with minimal anesthesia in an outpatient clinic. Despite the discomfort, the procedure takes less than 30 minutes.
Barium enema X-ray examination was performed to examine the colon as a whole. Dyes given through a narrow tube into the rectum to coat the entire colon. Several X-rays taken at different parts of the colon and abnormal regions identified. The next doctor may perform a colonoscopy or sigmoidoscopy so biopsies of suspicious areas can be done.
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