DIAGNOSTICS

diagnostics

• Colonoscopy: This is an examination of the large intestines, colon, rectum, and anus or the entire digestive tract. During this, the experts use a long flexible tube called a colonoscope to insert into the rectum to look for abnormalities and diseases such as swollen, irritated tissues, polyps or cancer spots in the large intestine and rectum.
• Ultrasound: Also, called ultrasonography or sonography, ultrasound is an imaging test that uses sound waves to take detailed images or pictures of organs, tissues, and structures within the body. This allows the expert to understand and identify any abnormalities in the digestive tract without performing any surgery.
• Blood Stool Tests: Medically termed as the fecal occult blood test (FOBT), the blood stool test help identify any hidden (occult) blood in the stool. In case of blood is found in the stool, it is an indication of colon cancer or polyps in the colon or rectum. However, it is important to mention here that not all cancers bleed and hence, the disease may go unidentified too.
• Endoscopic Biopsy (EB): It is a standardized preoperative diagnostic method used to diagnose colorectal cancer and is performed during a colonoscopy or sigmoidoscopy. Its accuracy level is extremely high and plays a major role in formulating the line of treatment. Apart from Endoscopic Biopsy, Needle Biopsy, and Surgical Biopsy are also done to identify colorectal cancer. 
• Biomarker Testing Of Tumour: Better known as biological markers or molecular markers, it is one of the well-established colorectal cancer screening strategies that help the colorectal doctor to look for genes, proteins, and other substances that indicate abnormalities caused by cancer.