CNS trauma

Question 1

bone displaced into cranial cavity by distance GREATER THAN THICKNESS OF BONE

Answer 1

displaced skull fracture

Question 2

bone break is 3 OR MORE PIECES

Answer 2

comminuted skull fracture

Question 3

bone is NOT COMPLETELY SEPARATED

Answer 3

greenstick skull fracture

Question 4

most common location of skull fracture for falls?

Answer 4

occipital fracture

Question 5

most common location of skull fracture from loss of consciousness?

Answer 5

frontal fracture

Question 6

mastoid ecchymosis (behind auricle) from extravasaation of blood along path of POSTERIOR AURICULAR ARTERY

Answer 6

BATTLE SIGN

Question 7

repetitive concussions –>chronic encephalopathy lead to cognitive impairment and nuerodegen disease

Answer 7

demential pugilistica

Question 8

tearing of brain tissue by penetrating object?

Answer 8

lacerations

Question 9

bruising of brain tissue a/w cerebral microhemorrhages

Answer 9

contusions

Question 10

vasogenic and cytotoxic edema
hemorrhage into cortex, white matter, and subarachnoid space
acunte neurone injury, red neurons
plaque jaune - old inj with retracted brown appearanced at gyral crest
extensive hemorrhagic lesions resemble old infarct

Answer 10

what do contusions cause?

Question 11

btwn skull and dura
rupture middle meningial artery
LUCID interval
lenticular shape on MRI

Answer 11

epidural hematoma

Question 12

btwn dura and pia
tearing of bridging VEINS
elderly at risk bc brain atrophy
venous bleeding - self limiting
cresent shape on MRI

Answer 12

subdural hematoma