USUS·CBS NewsA teen's headaches weren't going away. Doctors found a surprising causeLogan Coleridge thought his long-lasting symptoms were from a concussion until an MRI found an alarming, unexpected abnormality.Lean LAug 9Read at CBS News→USUS·CBS NewsA teen's headaches weren't going away. Doctors found a surprising causeLogan Coleridge thought his long-lasting symptoms were from a concussion until an MRI found an alarming, unexpected abnormality.Lean LAug 9Read at CBS News→