Quick answer: Yes. An emergency room CT scan is built to find bleeding, skull fractures, and swelling that may need surgery immediately. It cannot see the microscopic stretching of brain cells and the chemical disruption that cause concussion symptoms. A normal CT rules out a surgical emergency; it does not rule out a traumatic brain injury. Mild TBI is diagnosed from how the injury happened and how you function afterward, and proven with treating physicians, neuropsychological testing, and the people who know you best.
You were told the scan was clear, yet you are not yourself, and the adjuster keeps repeating the word normal. You are not imagining it. Call (626) 888-2223 and you will speak directly with Tom Vertanous.
The most common fight in a brain injury case
Here is the argument every insurance company makes: the CT was normal, so the brain is fine. It is the single most common defense in these cases, and it misreads what the scan does. The emergency room did not scan your head to diagnose a concussion. It scanned your head to decide whether you needed a neurosurgeon that night. The answer was no. That is all a normal CT means.
What an emergency CT is for
A CT scan takes minutes and shows structure: bone, blood, and swelling. In the emergency room it answers life-and-death questions. Is there bleeding inside the skull? Is the skull fractured? Is pressure building that requires surgery? A normal result is genuinely good news. It is triage. It is not a verdict on your brain.
What a CT cannot see
A concussion happens at a scale no CT can reach. The force of a crash stretches axons, the fine fibers that connect brain cells, and disrupts the chemistry inside the cells themselves. Injured cells misfire and run short of energy even though nothing is bleeding. The damage is real, but microscopic and spread thin, far below what a CT image can resolve. Even a standard MRI often looks normal after a mild traumatic brain injury. That is why doctors call mild TBI a clinical diagnosis: it is made from the event and the symptoms, not from a picture. At the severe end of the spectrum, the same blind spot can hide even devastating injuries; we explain that in what is a diffuse axonal injury.
What the injury looks like in daily life
- Headaches and sensitivity. Headaches that will not resolve, dizziness, nausea, and light and noise that feel like assaults; the grocery store or the open-plan office becomes unbearable.
- Thinking in slow motion. Reading the same page three times, losing the thread of a conversation mid-sentence, and searching for ordinary words.
- Memory slips. Missing appointments, repeating questions, and missing your exit on a drive you have made for years.
- Exhaustion and mood. Energy gone by early afternoon, broken sleep, anxiety, and a fuse far shorter than the one you had before.
No single symptom proves a concussion. The cluster, starting at the crash and running forward, is the picture. If yours began with a collision, our guide to concussion after a car accident covers the first weeks, and if symptoms have stretched on for months, read about post-concussion syndrome.
How a mild TBI is actually proven
Proof comes in layers. The crash itself: the speeds, the damage, whether your head struck something or whipped violently. The scene: feeling dazed, a gap in your memory, the notations in the police report and the emergency room chart. The treatment that follows, with each visit documenting symptoms over time. Then neuropsychological testing, the objective core of these cases. A licensed neuropsychologist spends hours administering standardized tests of memory, attention, processing speed, and problem solving, scores them against people of your age and education, with built-in validity measures that confirm genuine effort. A defense lawyer can argue with how you say you feel. It is much harder to argue with measured scores.
Your family's observations are evidence
The people who live with you hold the evidence no record captures: the before. A spouse who says you used to run the household bills and now cannot finish them. A coworker who says your reports used to come back clean and now come back late. Concrete, dated, specific observations, kept in a journal as they happen, become testimony later, and these before-and-after witnesses often matter as much as any doctor. The full approach, from testing to planning for future care, is in our California traumatic brain injury lawyer guide.
A common example
Consider a driver rear-ended at a stoplight. Her head snaps back and forward; she never blacks out, just sits stunned while her ears ring. The emergency room runs a CT, finds no bleeding, and sends her home with a concussion handout. Two weeks later she is still fighting headaches, the office fluorescents are unbearable, and she snaps at her kids over nothing. Her doctor refers her to a concussion clinic, and months later neuropsychological testing documents measurable deficits in memory and processing speed. The adjuster offers almost nothing because the scan was normal. The testing, her treating doctors, and her husband's testimony tell the real story.
Do not let the word normal end your claim
Most California injury claims must be filed within two years under Code of Civil Procedure section 335.1, and a written government claim may be due within six months when a public entity is involved. The real clock is the record: every week of documented symptoms builds the proof, and every undocumented week is a gift to the defense. If a normal scan is being used to tell you your injury is not real, get a second opinion on the medicine and on the claim.
Frequently asked questions
Why didn't the emergency room order an MRI?
Because the emergency room's job is to find emergencies, and CT does that in minutes. MRI is usually ordered later by treating doctors when symptoms persist. A missing MRI on day one says nothing about whether your brain was injured.
Does a normal MRI rule out a brain injury?
No. Standard MRI also misses the microscopic injury behind most concussions, and a normal MRI is common in mild traumatic brain injury. The diagnosis is clinical, built on how the injury happened and on symptoms documented over time.
What is neuropsychological testing?
A battery of standardized tests of memory, attention, processing speed, and problem solving, given by a licensed neuropsychologist, usually over several hours. Your scores are compared with people of your age and education, and the battery includes validity measures that confirm genuine effort.
How long do I have to file a brain injury claim in California?
Generally two years from the date of injury under Code of Civil Procedure section 335.1, and a written government claim may be due within six months when a public entity is involved. Start sooner; these cases are proven with records built over time.
Told your scan was normal, but you are not yourself?
Free, confidential consultation. You will speak directly with Tom Vertanous, in English, Armenian, or Farsi. The Vertanous Firm has recovered more than $60 Million for injured Californians. No fee unless we win. (626) 888-2223.
Request a ConsultationResults depend on the unique facts of each case. Prior results do not guarantee or predict a similar outcome in any future matter. This article is general information about California law, not legal advice, and does not create an attorney-client relationship. Responsible for content: Tom Vertanous, Esq., The Vertanous Firm, P.C., SBN 330760, (626) 888-2223.