Screening and diagnosis of colorectal cancer involve:
Detailed discussions about the patient’s personal and family medical history to get to know about the symptoms/diagnosis for any type of cancer or polyps.
The following tests might be performed to check for and confirm the diagnosis:
Colonoscopy: This test is performed under sedation to allow our specialist to look inside the rectum and colon. A flexible, lighted tube is inserted inside the rectum to check for any kind of polyps.
Sigmoidoscopy: This procedure also uses a flexible, lighted tube that is inserted through the rectum. This gives a view into the person’s rectum and lower colon to check for polyps, cancer or any other abnormalities. Our specialist will also remove a part of the polyp for biopsy, if needed, during the procedure itself.
Faecal occult blood test: Also known as a faecal immunochemical test, this test is used to search for evidence of blood in the faeces. A positive test can indicate the presence of a polyp of the tumour.
Double-contrast barium enema: This test is performed in patients where colonoscopy is not an option. Here, an enema, that contains barium is given to the patients which provides a clear vision of the colon and rectum in an x-ray.
Stool DNA tests: In these tests, DNA is extracted from a person’s stool, to check for cancer.