| brain concussion | Transient or prolonged unconsciousness with or without impairment of higher mental functions and/or brainstem functions, due to a violent blow to the head. (12 Dec 1998) |
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| concussion | <neurology> A more serious form of head injury that is characterised by one or more of the following features: loss of consciousness, amnesia, seizure or a change in mentation. See: brain contusion. (05 Jan 1998) |
| concussion cataract | Traumatic cataract occurring with or without a hole in the lens capsule. (05 Mar 2000) |
| concussion myelitis | Traumatic myelopathy. (05 Mar 2000) |
| spinal concussion | Injury to the spinal cord due to a blow to the vertebral column with transient or prolonged dysfunction below the level of the lesion. Synonym: spinal concussion. (05 Mar 2000) |
| spinal cord concussion | Injury to the spinal cord due to a blow to the vertebral column with transient or prolonged dysfunction below the level of the lesion. Synonym: spinal concussion. (05 Mar 2000) |