SDL: Trauma

Question 1

conscious skull fractures tend to be here

unconscious skull fractures tend to be here

Answer 1

occipital

frontal

Question 2

bruising of parenchyma coming in tract the skull bone or another object as a result

Answer 2

contusion

Question 3

shape of infarcts vs contusions

Answer 3

infarcts tend to have roughly triangular shape

contusions involve crests of gyri, surfaces

Question 4

coup lesion vs contrecoup

Answer 4

coup lesion: at site of trauma, while head is still

contrecoup: at opposite side of trauma, while head is in motion

Question 5

coup lesion vs contrecoup

Answer 5

coup lesion: at site of trauma, while head is still

contrecoup: at opposite side of trauma, while head is in motion

Question 6

what causes diffuse axonal injury?

Answer 6

angular acceleration (twisting or centrifugal motion), brain pulls itself with its own weight; puts 50% of ppl in coma

Question 7

pathology of diffuse axonal injury; what type of matter typically has DAI?

Answer 7

axonal spheroid swellings

white matter tracts

Question 8

caused by middle meningeal artery tear due to fracture

Answer 8

epidural hematoma (suddenly become unconscious)

Question 9

caused by bridging vein tear by sudden brain movement

Answer 9

subdural hematoma

Question 10

subarachnoid hemorrhages are typically caused by

Answer 10

aneurysms