Your doctor won't screen you for pancreatic cancer — here's the surprising reason why

Dear Doctor Roach: Please explain why there are standard tests that we all know we should do as we age, such as a colonoscopy, a mammogram, a skin check, eye exams, etc. But nobody ever says that you should do at least one CT scan or MRI for the deadliest of them all -- pancreatic cancer! It’s rarely diagnosed until stage 4!