Which term best describes a brief interruption in brain function with no identifiable brain tissue damage?

Which term best describes a brief interruption in brain function with no identifiable brain tissue damage?

• A. Contusion
• B. Epidural hematoma
• C. Cerebral concussion
• D. Subdural hematoma

Answer: (C)

Concussion is a temporary disruption of brain function following head trauma without any visible brain tissue damage. It happens as the brain moves within the skull and temporarily alters neural function, so you may see confusion, amnesia around the event, headache, dizziness, or slowed responses, even though imaging (like CT or MRI) often appears normal. That lack of identifiable structural injury is what sets concussion apart from other head injuries. In contrast, a contusion involves actual bruising of brain tissue, so imaging would show focal injury in the brain itself and symptoms can be longer-lasting or more focal. An epidural hematoma is a bleed between the skull and the dura, typically from arterial injury, which can progress and require urgent treatment due to rising pressure. A subdural hematoma is bleeding between the dura and arachnoid, which can be acute or develop slowly, also risking significant pressure on the brain and needing attention sooner rather than later. So the best description for a brief, functional disruption without tissue injury is concussion.

Concussion is a temporary disruption of brain function following head trauma without any visible brain tissue damage. It happens as the brain moves within the skull and temporarily alters neural function, so you may see confusion, amnesia around the event, headache, dizziness, or slowed responses, even though imaging (like CT or MRI) often appears normal. That lack of identifiable structural injury is what sets concussion apart from other head injuries.

In contrast, a contusion involves actual bruising of brain tissue, so imaging would show focal injury in the brain itself and symptoms can be longer-lasting or more focal. An epidural hematoma is a bleed between the skull and the dura, typically from arterial injury, which can progress and require urgent treatment due to rising pressure. A subdural hematoma is bleeding between the dura and arachnoid, which can be acute or develop slowly, also risking significant pressure on the brain and needing attention sooner rather than later.

So the best description for a brief, functional disruption without tissue injury is concussion.