10.5 CNS Trauma

Question 1

periorbital ecchymosis = fx of

Answer 1

orbital plate

Question 2

retromandibular ecchymosis / Battle sign = fx of

Answer 2

petrous portion of temporal bone

Question 3

fragmented skull fracture called a

Answer 3

comminuted fracture

Question 4

skull fx of child - opens suture, called

Answer 4

diastatic fracture

Question 5

3 types of axonal injury grading

Answer 5

I - widespread / microscopic

II - focal hemorrhagic corpus callosum

III - hemorrhages in rostral brainstem

Question 6

best stain for axonal injury

Answer 6

amyloid precursor protein

Question 7

all ER head traumas get CT even if lucid b/c might be

• dx
• what to look for on CT
• blood vessel damaged

Answer 7

epidural hemorrhage

lens-like configuration

middle meningeal artery

Question 8

older patient with minor fall most likely

• dx
• what to loo for on CT
• blood vessel damaged

Answer 8

subdural hemorrhage

crescent shaped

cortical bridging veins

Question 9

causes of intraventricular hemorrhage

Answer 9

germinal matrix hemorrhage

malformation of choroid plexus

trauma

Question 10

ppl w/ chronic raumatic encephalopathy / dementia pugilistica have abnormal deposition of

Answer 10

tau proteins (also in Alz)