Which CT finding is associated with a higher risk of poor outcome?

Which CT finding is associated with a higher risk of poor outcome?

• A. Midline shift
• B. Small contusions
• C. Absence of mass lesion
• D. Preserved basal cisterns

Answer: (A)

Midline shift on CT reflects a significant mass effect from a hematoma, edema, or swelling, pushing brain structures off their normal position. This displacement indicates markedly raised intracranial pressure and a real risk of brain herniation, which can compromise brainstem function and cerebral perfusion. Those effects are strongly linked to worse functional outcomes and higher mortality after traumatic brain injury, making midline shift the finding most predictive of a poor prognosis. In contrast, tiny contusions or no mass lesion with preserved basal cisterns imply less severe pressure dynamics and better potential for recovery, so they’re associated with a more favorable prognosis.

Midline shift on CT reflects a significant mass effect from a hematoma, edema, or swelling, pushing brain structures off their normal position. This displacement indicates markedly raised intracranial pressure and a real risk of brain herniation, which can compromise brainstem function and cerebral perfusion. Those effects are strongly linked to worse functional outcomes and higher mortality after traumatic brain injury, making midline shift the finding most predictive of a poor prognosis. In contrast, tiny contusions or no mass lesion with preserved basal cisterns imply less severe pressure dynamics and better potential for recovery, so they’re associated with a more favorable prognosis.