recently I had colonoscopy test and the doctor said that there is a lump in the finding what it can be. I am going for ct scan and surgery next Thursday. the doctor said it may be props or cancerous in stages 1 or 2. is it serious and life treatning, pls advise, I am tensed! I have a sometimes burning sensation in the belly, the stools are sometimes going bits & pieces, dark brown in color and bowels clearing abt 3-4 times a day, sometimes immediately after taking food. I have lost abt 8kgs over a period of 1 year.