Colon cancer is also known by the terms colorectal cancer or bowel cancer and refers to the growth of cancer from the colon or rectum, which are the vital parts of our large intestine. Every cancer results from the abnormal growth of cells of a particular body part, which further spreads to the other parts of the body.
Although old age and lifestyle factors are the major reasons for colon cancer, other less prominent causes are genetic disorders, diet, lack of physical activity, obesity and smoking. Visit a colon cancer center to get a diagnosis of colon cancer.
Signs and symptoms of colon cancer
Although the signs and symptoms of colon cancer or colorectal cancer depend on the location and spreading of the tumour, some of the classic warning signs include:
- Worsening constipation
- Blood in the stool
- Decrease in stool thickness
- Loss of appetite and weight
- Nausea or vomiting
Diagnosis of colon cancer
- To diagnose colorectal cancer, a sample from the suspicious tumour area is taken, generally during colonoscopy or sigmoidoscopy.
- This is done with a consideration to the location of the lesion and the doubt of cancer is confirmed by microscopical examination of the taken tissue sample.
- A CT scan of the chest, abdomen and pelvis usually informs the doctors about the extent of the disease.
- The doctor can also use other potential imaging tests like PET and MRI in certain cases.
- After this, colon cancer staging is performed, based on radiology and pathology.
- Tumour's microscopic cellular characteristics are reported from the analysis of tissue taken from a biopsy or surgery.
- For tumour tissues' description of the microscopical characteristics, a pathology test is done. This informs the doctor about the tumour cells, how they have invaded into healthy tissues and if the tumour appears to be completely removed.