will a single contrast head ct lead to brain tumor or cancer please help i read this from the net The high doses of radiation patients receive from CT scans may cause thousands of additional cancer cases each year, according to a startling new U.S. study. The research, published in Tuesday s edition of the Archives of Internal Medicine, suggests that about 2 per cent of all cancers in the United States are caused by exposure to radiation during computed tomography scans. now im afraid because i had a contrast ct scan for my head it was clear but now im afraid thinking that i will get tumor or cancer in my head from that ct. i even lost my job i lost enjoy the life anxiety is destroying me. they give my a head ct i didnt need it i hope if i didnt do it i destroy my life no one wanna help me even my family 1-do you thing this single contrast head ct will give me brain tumor or cancer and if yes after how many years 2-one doctor in the hospital told me that ct will give you high chance of cancer and the other told me no thats only if we do it too many times my family doctor told me my doctor told me No. It takes a LOT more exposure. Do you know you get the same exposure from flying on a plane is that right or not im 24 years old male thanks for your help