Colorectal Cancer Screening
There has reduced deaths from colorectal tumor due to colorectal tumor screening which results in early cancer detection, early cancer treatment and eventually a better outcome and higher survival rate. All individuals have different risks of developing colon cancer ranging from average risk, increased risk to high risk. Depending on your risk, different screening modalities are recommended.
Now let’s discuss about the screening tests available currently:
1. Faecal Occult Blood Test (FOBT)
3. Flexible Sigmoidoscopy:
4. CT Colonograghy (Virtual Colonoscopy):
5. Double Contrast Barium Enema
6. Stool DNA Test
7. Genetic Testing
8. Carcinoembryonic Antigen (CEA tumor marker)
Risk Categorization for Colorectal Tumors
Average risk individuals
This include individuals who has no symptoms and no family history of colorectal tumor
Increased risk individuals
Individuals with personal history of colorectal tumor or those who have one or more 1st degree relatives with colorectal tumor or those with prior endometrial, breast or ovarian cancer or those with previous pelvis radiation.
High Risk Individuals
These include people with hereditary or genetic predisposition to colorectal tumor (FAP and HNPCC) and also those with longstanding inflammatory bowel disease.