How Do You Prove a Brain Injury Claim When Your CT Scan or MRI Is Normal?

You were involved in a car accident, hit your head in a fall, or experienced another traumatic event. At the emergency room, doctors ordered a CT scan or MRI, but the results came back normal. Unfortunately, you are still experiencing headaches, dizziness, memory problems, difficulty concentrating, or changes in your personality.

A normal CT scan or MRI does not automatically rule out a concussion or mild traumatic brain injury (TBI). You may still have a valid personal injury claim in Arizona, but proving it requires more than explaining that you do not feel like yourself. Medical evaluations, consistent documentation, expert opinions, and evidence showing how your life has changed can all become important.

At Perez Law Group, PLLC, we believe brain injury claims should be evaluated based on the complete medical and personal history, not simply whether an imaging report identifies visible damage.

Why Can a CT Scan or MRI Be Normal When You Have a Brain Injury?

CT scans and MRIs are valuable diagnostic tools, but they have limitations. A CT scan is particularly useful for identifying bleeding, certain fractures, and other potentially serious injuries following head trauma. An MRI can provide more detailed images of brain structures, but even a conventional MRI may not detect every injury associated with a concussion.

According to the Centers for Disease Control and Prevention (CDC), a mild traumatic brain injury can occur when a sudden impact or movement causes the brain to move rapidly inside the skull. This movement may produce chemical changes and affect brain cells without creating abnormalities visible on standard imaging. A concussion is generally diagnosed through clinical evaluation rather than a scan alone.

This distinction is important when dealing with an insurance company. A report stating that no acute intracranial abnormality was identified does not necessarily mean the person experienced no injury. However, a normal scan also does not independently establish that a brain injury occurred. Additional medical evidence is needed.

How Do You Prove a Brain Injury Without Visible Damage on Imaging?

The strongest approach is to build a clear connection between the accident, the resulting medical symptoms, and the changes in the injured person’s daily functioning. Rather than depending on one medical test, the claim should bring together different types of evidence that support the same conclusion.

Medical records are the foundation. Emergency room notes, follow-up appointments, neurological examinations, referrals, treatment recommendations, and documented symptoms can help establish what happened and how the condition progressed. Details such as confusion immediately after the accident, memory gaps, headaches, or balance problems may become important even when the initial imaging is normal.

Independent evidence can also strengthen the claim. Statements from family members, employment records, missed work, and observations from people who knew the injured person before the accident may help show that something meaningful changed. These records are particularly valuable when the symptoms involve memory, concentration, emotional regulation, or cognitive fatigue.

Can Neuropsychological Testing Help Prove a Brain Injury?

Neuropsychological testing can be useful when someone continues experiencing cognitive difficulties following an accident. Unlike CT scans and MRIs, which examine physical structures, these evaluations assess aspects of how the brain functions. Depending on the circumstances, testing may examine memory, attention, processing speed, reasoning, and problem-solving abilities.

For example, a person who previously managed several projects simultaneously may now struggle to follow conversations or remember instructions. A neuropsychologist can evaluate reported difficulties using standardized assessments and interpret the results alongside medical history, education, prior functioning, emotional health, and other relevant factors.

These evaluations are not automatic proof of a traumatic brain injury. Cognitive difficulties can have multiple explanations, including sleep problems, pain, medication effects, and psychological conditions. However, when professionally interpreted alongside the accident history and clinical findings, neuropsychological testing may provide valuable evidence supporting a diagnosis and documenting functional limitations.

Why Does Your Life Before and After the Accident Matter?

One of the most revealing questions in a brain injury claim is relatively simple: What could you do before the accident that you struggle to do now? The answer may explain the injury’s impact more clearly than a medical report containing technical terminology.

Consider an employee who previously worked full time, handled complicated assignments, and rarely missed deadlines. After a collision, that same employee becomes easily overwhelmed, forgets routine tasks, and requires frequent breaks because of headaches or mental fatigue. Employment evaluations, attendance records, emails, and observations from supervisors may help establish these changes.

Family members can also provide meaningful insight. A spouse might notice increased irritability, forgetfulness, or changes in sleep patterns. Children may notice that a parent no longer participates in familiar activities. These observations do not replace medical evidence, but they help explain how symptoms affect everyday life.

The Three Timelines That Can Strengthen Your Brain Injury Claim

At Perez Law Group, we believe an effective way to evaluate these claims is to examine three connected timelines: the accident timeline, the medical timeline, and the functional timeline. Each addresses a different part of the claim, and inconsistencies or missing information may need further investigation.

The accident timeline explains how the injury may have occurred, including the force of the collision, movement of the head, witness observations, and any confusion or disorientation immediately afterward. The medical timeline documents when symptoms began, what healthcare providers observed, what treatment was recommended, and whether the condition improved or continued. Some symptoms may not become noticeable until hours or days after an injury, as discussed in our article about delayed car accident injuries.

The functional timeline documents how the person’s abilities changed. It might show that someone stopped working overtime, required help managing finances, struggled to drive safely, or could no longer tolerate noise and crowded environments. When these three timelines support one another, they may help explain an injury that does not appear on standard imaging.

Example: A Brain Injury Claim With a Normal CT Scan

Consider a hypothetical situation involving a 42-year-old office manager who is rear-ended while stopped at a traffic light in Glendale, Arizona. She visits the emergency room complaining of a headache and dizziness. Her CT scan shows no acute abnormalities, and she is discharged with instructions to monitor her symptoms.

Over the following weeks, she experiences difficulty concentrating, increased sensitivity to light, and unusual fatigue. Her primary care provider documents the symptoms and recommends further evaluation. A specialist identifies findings consistent with a concussion, and subsequent assessments document persistent cognitive complaints. Her employer also notices that she is making mistakes in tasks she previously handled without difficulty.

In this example, the claim does not depend on finding visible brain damage. Instead, it depends on whether the medical history, clinical findings, accident evidence, and documented changes reasonably establish an accident-related injury and resulting losses. A qualified medical professional would still need to consider alternative explanations and the extent to which the collision contributed to her symptoms.

What If the Insurance Company Says You Cannot Have a Brain Injury Because Your Scans Are Normal?

An insurance adjuster may question a traumatic brain injury claim when diagnostic imaging is normal. The insurer might argue that the symptoms are subjective, that the accident was not severe enough to cause a brain injury, or that concentration and memory difficulties are related to stress or a pre-existing condition.

These arguments should be evaluated against the evidence rather than accepted automatically. Clinical examinations, symptom progression, medical opinions, and documented changes in functioning may help distinguish accident-related injuries from unrelated conditions. Likewise, earlier medical records may establish whether a person experienced similar difficulties before the accident.

Our article explaining whether an MRI helps prove a car accident injury claim explores why imaging should be considered alongside other medical evidence. The goal is not to dismiss an unfavorable test result. It is to understand what the test actually establishes and what additional information is needed.

What Compensation Can You Recover for a Brain Injury With Normal Imaging?

If another person’s negligence caused the injury, an Arizona personal injury claim may include compensation for reasonable medical expenses, rehabilitation, lost wages, reduced earning capacity, pain, emotional distress, and other supported losses. Some people recover relatively quickly from a concussion, while others experience symptoms that continue for months or longer and require additional treatment.

The value of a brain injury claim does not automatically increase because a particular diagnosis appears in the medical records. The severity, duration, functional impact, medical evidence, liability, and available insurance coverage all matter. In cases involving persistent symptoms, understanding the likely recovery and future treatment needs may be especially important before negotiating a final settlement.

That is one reason injured people should be cautious about accepting compensation before they understand their medical condition. Learn more about the danger of accepting an early settlement offer after a head injury.

What Should You Do If Your Brain Scan Is Normal but Symptoms Continue?

If you continue experiencing symptoms after an accident, tell your healthcare provider exactly what is happening. Describe specific problems rather than relying on general statements such as feeling strange or not feeling normal. For example, explain that you have forgotten appointments, become dizzy while shopping, or developed headaches after concentrating on a computer screen.

Maintain a dated record of symptoms, medical visits, medications, missed work, and activities that have become difficult. Follow your healthcare provider’s recommendations and ask whether additional evaluation is appropriate if symptoms persist. The CDC’s concussion recovery guidance recommends contacting a healthcare provider when symptoms do not resolve or become worse during the return to regular activities.

Most importantly, do not assume a normal scan makes further medical attention unnecessary. A worsening headache, repeated vomiting, seizures, increasing confusion, weakness, or difficulty waking up can indicate a medical emergency. Seek immediate emergency care if these warning signs develop.

How Long Do You Have to File a Brain Injury Claim in Arizona?

Under Arizona Revised Statutes Section 12-542, many personal injury lawsuits must be filed within two years after the cause of action accrues. However, exceptions and different deadlines may apply depending on the circumstances.

Claims involving government agencies or public employees can have substantially shorter deadlines and additional notice requirements. Because brain injury symptoms may take time to become fully understood, it is important not to assume that a delayed diagnosis automatically extends the filing deadline.

Talk to Perez Law Group About an Arizona Brain Injury Claim

A normal CT scan or MRI can be reassuring because it may help rule out certain dangerous injuries. However, it does not necessarily tell the complete story when a person continues experiencing headaches, memory difficulties, cognitive changes, or other symptoms following an accident.

Perez Law Group, PLLC represents people with traumatic brain injuries and other serious personal injuries in Glendale, Phoenix, the West Valley, and communities throughout Arizona. Our attorneys can review accident evidence, medical records, insurance coverage, and the impact of an injury on your daily life to help determine your legal options.

Call Perez Law Group at (602) 730-7100 or visit our traumatic brain injury attorney page to request a consultation. Hablamos Español.

This article provides general educational information and is not medical or legal advice. Every brain injury claim depends on its individual facts, medical evidence, applicable law, and insurance coverage.