Which statement about the diffuse brain injury associated with rotational injuries is most accurate?

• A. It involves widespread brain impact rather than a single localized injury
• B. It is always a skull fracture
• C. It is always minor and not serious
• D. It only occurs in older individuals

Answer: (A)

Rotational head motion creates shear forces that spread damage across many white matter tracts, leading to diffuse axonal injury. Because the injury affects widespread areas rather than a single spot, this type of brain injury is characterized by global disruption of brain networks rather than a localized lesion. That makes the statement describing widespread involvement the most accurate. Skull fracture isn’t required for this injury, and the damage isn’t inherently minor—diffuse axonal injury can range from prolonged unconsciousness to severe disability. It can occur in people of any age, not just older individuals.