Digital rectal examination can be done in which a doctor examines the rectum for an abnormality by inserting a lubricated, gloved finger via the anus.
This test can provide little information about cancer within the rectum or in nearby organs. Thus, detailed colorectal cancer investigations are required to establish the diagnosis of cancer.
Some diagnostic techniques can accurately determine the extent of cancer invasion in the intestinal wall and spread of the disease to other body parts, which in turn help in selecting an appropriate treatment option.
Following are some commonly used investigational tools for diagnosis of colorectal cancer:
Guaiac-based fecal occult blood test (gFOBT), immunochemical fecal occult blood test (iFOBT), and stool DNA test are some other useful screening techniques which might help in the diagnosis of occult disease.
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Watch the video below to better understand the various INVESTIGATIONS FOR DIAGNOSIS AND STAGING OF COLON CANCER.
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