The sentence that costs people their claim is "your CT scan was normal." CT and standard MRI are built to find bleeding and swelling, not the microscopic axonal damage that produces most lasting symptoms after a concussion. A clean scan means you are not bleeding into your skull. It does not mean your brain was not injured, and insurers know the difference perfectly well. The Law Offices of Brent A. Devere handles traumatic brain injury claims in Austin and across Central Texas.