Any type of motor vehicle accident could cause significant injuries, especially motorcycle accidents or 18 wheeler wrecks. One of the most significant types of injuries from an auto accident is a traumatic brain injury, or TBI. The CDC reports that there are almost 3 million emergency department visits, hospitalizations, or deaths due to TBIs. Unfortunately, this is also one of the most difficult types of injuries to detect, treat, and cure. The problem is that a brain injury does not always show up on an imaging study. A brain injury is not like a broken bone that an x-ray will normally detect, or a torn muscle that an MRI scan will reveal. Although it is true that some traumatic brain injuries are immediately visible, many brain injuries may take months to show up on an imaging test. Other brain injuries may never show up.