Pictures

Question 1

What does this pic show?

Answer 1

uncal herniation

uncal grooving

uncus is seen underneath the tentorium

Question 2

What is shown here?

Answer 2

uncal herniation on his left side

compressed CN3, blocking sympathetic output.

Question 3

Which pathologies are shown here?

Answer 3

uncal herniation

also kernohan notching of cerebral peduncle, L side of pic.

THis is a result of uncal herniation, a result of cerebral edema from trauma or whatever.

Question 4

What’s the deal here?

Answer 4

duret hemorrhage in the midbrain & the pons

due to issues w/ paramedian branch of basilar artery

can cause death if it compromises respiratory centers etc of the midbrain/pons

Question 5

What is shown here?

Answer 5

occipital lobe infarct (bilateral)
caused by compromised posterior cerebral artery

likely caused by central herniation

issues w/ vision. If the temporal lobe is also compromised–patient will deny that they have vision problems.

Question 7

What is shown here?

Answer 7

congenital hydrocephalus

sutures allow expansion of brain

extra CSF in ventricles

Question 8

What is shown here?

Answer 8

enlarged ventricles, perhaps indicative of hydrocephalus. If sulci were enlarged too–could be cortical atrophy from alzheimer’s.

If true hydrocephalus (adult) then a shunt would be appropriate treatment. If not, could cause brain collapse & subdural hematoma.