Inicio » Blog » Cómo demostrar una lesión cerebral traumática leve con un examen de imagen normal: lo que necesitas saber
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Última modificación el 11 de agosto de 2026
A CT scan or MRI can provide important information after a head injury, but normal imaging does not always mean your brain escaped injury.
Many traumatic brain injuries, particularly mild TBIs and concussions, may not appear on routine scans even when symptoms are real and persistent.
That distinction can become important if an insurance company points to “normal” imaging as evidence that your injuries are not serious. Brain injury claims are built on the complete medical picture, including your symptoms, neurological evaluations, and how the injury occurred.
En Bentley & More LLP, nuestro Orange County brain injury attorneys know how to present that evidence effectively. We offer a free consultation to explain your legal options and evaluate the strength of your claim.
Puntos clave
- See a doctor as soon as possible if you develop symptoms after a head injury, even if your initial CT scan or MRI was normal. Delays in treatment can make it harder to connect your symptoms to the accident.
- Ask whether additional evaluations, such as neuropsychological testing or Diffusion Tensor Imaging (DTI), may be appropriate if headaches, memory problems, or mood changes continue.
- Keep a daily record of your symptoms, and ask family members, friends, or coworkers who knew you before the accident to document any changes they have observed.
- Be cautious during an insurance company’s “independent” medical examination. The physician is hired by the insurer, and their opinion is only one piece of the evidence.
- In California, you generally have two years to file a personal injury lawsuit under CCP § 335.1, but claims against government entities often require action within six months.
- A normal brain scan does not automatically mean you do not have a valid brain injury claim. Consistent medical treatment and thorough documentation are often far more important than a single imaging result.
At Bentley & More LLP, we build these cases with full documentation from the professionals who actually treated you. A free consultation can tell you where your case stands.
What a “Normal” Scan Actually Rules Out
A normal CT scan or MRI is reassuring because it helps doctors rule out life-threatening injuries that require immediate treatment, such as bleeding in the brain, skull fractures, or significant swelling. Those tests play an essential role in emergency care.
What they cannot do is rule out every type of brain injury. Many concussions and mild traumatic brain injuries involve changes that are too subtle to appear on routine imaging.
That is why doctors also consider your symptoms, neurological examination, and the circumstances of the accident when making a diagnosis. A normal scan is one piece of the medical picture, not the final answer.
Why a Mild Traumatic Brain Injury May Not Appear on Imaging
A mild traumatic brain injury often doesn’t appear on a CT or MRI because the damage happens at a level those scans were never built to catch. Standard imaging looks for structural injury like bleeding, swelling, or fractures.
Mild TBI usually involves microscopic shearing of the brain’s nerve fibers, damage far too small for conventional imaging to resolve.
Because the scan can’t confirm it, physicians rely on the complete clinical picture instead, weighing your symptoms, a neurological exam, cognitive function, and how the injury happened.
As recovery continues, follow-up evaluations, neuropsychological testing, or specialist referrals often add far more to the record than the original CT or MRI ever could.
What Testing Can Show When Scans Come Back Clean
Other tools can document what happened to your brain when a CT or MRI can’t.
- Neuropsychological testing. A licensed neuropsychologist measures memory, attention, and processing speed against normed data, often revealing cognitive impairment weeks after the accident.
- Diffusion Tensor Imaging. This specialized MRI software tracks the brain’s white matter and can detect shearing months after a standard MRI on the same brain looked normal.
- Functional imaging and EEG. These measure brain activity instead of structure, picking up disruptions anatomical scans aren’t built to see.
If an adjuster is already using a “normal” scan to dismiss your injury, Bentley & More LLP has seen that tactic before. We know how to build a case that looks beyond a single test.
How Insurance Adjusters Can Use a Clean Scan Against You
Insurance adjusters can often point to a normal CT scan or MRI as evidence that your injuries are minor or unrelated to the accident. They may argue that your symptoms have another cause or rely on a physician hired by the insurance company to support that position.
A normal scan is only one piece of the picture. Your treating doctors, your symptom history, and the people who’ve watched you day to day all help fill in the rest.
California’s Two-Year Deadline to File a Claim
En California, por lo general tienes two years from the date of the accident to file a personal injury lawsuit under California Código de Procedimiento Civil, artículo 335.1. If your claim involves a government entity, such as a city, county, or Caltrans, you may have as little as six months to file an administrative claim before pursuing a lawsuit.
Although those deadlines may seem far away, building a mild traumatic brain injury claim often takes time. Medical records, follow-up evaluations, witness statements, and other evidence are easier to gather while they are still fresh.
Speaking with an attorney early can help preserve that evidence and ensure important filing deadlines are not missed.
Preguntas frecuentes
Can I still get compensation if my brain scan came back normal?
Yes. Many legitimate traumatic brain injury claims settle successfully with a normal scan on file. Standard scans only show structural damage, not how your brain is functioning. In reality, detailed neuropsychological testing, symptom logs, and witness testimony often carry far more weight in proving your claim than the initial imaging.
What is Diffusion Tensor Imaging, and will my doctor order it?
DTI is specialized MRI software that tracks white matter and can catch shearing damage a standard MRI misses. It isn’t automatic, so ask your neurologist about it early, since scheduling can take weeks.
Does it matter how long my symptoms last for my claim?
Yes. Insurance companies usually wait until you reach Maximum Medical Improvement (MMI), the point where your doctor expects no further major recovery, before negotiating a settlement. Symptoms that resolve in a few weeks and those that linger for months or years result in different case valuations, as longer-lasting symptoms reflect higher medical costs, lost wages, and ongoing impact on your quality of life.
Will the insurance company make me see their own doctor?
They might request or demand an Independent Medical Examination (IME). The doctor is chosen and paid for by the insurance company, so their findings often favor the defense. Treat the IME as just one opinion because it does not outweigh the comprehensive care provided by your own treating doctors.
What if my symptoms didn’t start until days after the accident?
That is common and does not ruin your claim. Delayed onset is well documented in mild traumatic brain injury cases. Get evaluated as soon as symptoms appear and tell the doctor plainly that you were involved in an accident.
Bentley & More LLP: Your Orange County Brain Injury Law Firm
A normal CT scan or MRI does not define the true strength of your brain injury claim.
If you continue to experience symptoms after an accident, the evidence that matters often extends far beyond your initial imaging results.
En Bentley & More LLP, our personal injury attorneys collaborate directly with your treating doctors to build a clear, well-documented case that reflects the full reality of a mild traumatic brain injury.
If you have questions about your diagnosis, your options, or the real value of your claim, Contáctenos hoy mismo para una consulta gratuita.
Acerca del autor: Greg Bentley
Cofundador y abogado litigante en Bentley & More LLP
Greg Bentley es cofundador de Bentley & More LLP en Newport Beach, California. Con 36 años de experiencia, representa a demandantes en casos de lesiones personales, muerte por negligencia, responsabilidad por productos defectuosos, mala fe de las aseguradoras, condiciones peligrosas en carreteras y propiedades, y defectos en obras de construcción. Habilitado para ejercer en el Colegio de Abogados de California, Greg obtuvo su título de Doctor en Derecho en la Facultad de Derecho de la Western State University en 1990. Es miembro de varias organizaciones de abogados litigantes a las que solo se puede ingresar por invitación, entre ellas el Colegio Americano de Abogados Litigantes y la Academia Internacional de Abogados Litigantes, y participa activamente en múltiples asociaciones de abogados litigantes a nivel estatal y regional.
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