Which injury refers to a brain bruise?

• A. Subarachnoid Hemorrhage
• B. Subdural Hematoma
• C. Contusion
• D. Brain Tumor

Answer: (C)

A brain contusion is a bruise of the brain tissue caused by blunt head trauma, producing localized edema and small areas of hemorrhage within the cortex. This describes the tissue-level bruising that occurs after impact, and it can happen at the site of impact or on the opposite side due to brain movement. Subarachnoid hemorrhage involves bleeding into the space around the brain, not bruising of the brain tissue itself; a subdural hematoma is a collection of blood beneath the dura, also not a tissue bruise; and a brain tumor is an abnormal growth, not an acute injury from trauma. So the term that best matches a brain bruise is contusion.