Types of intracranial hemorrhages

Question 1

Epidural hematoma

Answer 1

Most commonly middle meningeal artery (branch of maxillary artery)

Can lead to CN III palsy (Eye down and out)

Look for a lens shaped collection of blood

Question 2

What is the middle meningeal artery a branch of?

Answer 2

Branch of the maxillary artery

Question 3

Subdural hematoma

Answer 3

Rupture of bridging veins leading to slow venous bleeding.

Seen commonly in elderly and alcoholics or shaken babies.

WILL BE CRESCENT SHAPED crossing suture lines eading to a midline shift.

Question 4

Crescent shaped blood lesion in skull

Answer 4

Subdural hematoma

Midline shift will be present.

Question 5

Lens shaped blood lesion in the skull

Answer 5

Epidural hematoma.

Question 6

What is the most common cause of a subarachnoid hemorrhage?

Answer 6

Rupture of an aneurysm.
Patient will complain with worst headache of my life.
Bloody or yellow spinal tap.

Question 7

What structure is most vulnerable in ischemic brain diseases

Answer 7

Ischemic hypoxia places the HIPPOCAMPUS AT GREATEST RISK

Question 8

Treatment for an ischemic stroke

Answer 8

tPA if within 3-4.5 hours.

reduce risk with aspirin or clopidogrel.

Question 9

Where are venous sinuses found in the skull?

Answer 9

In the meninges.

Question 10

What veins drain into the dural venous sinuses?

Answer 10

Superior sagittal sinus
Inferior sagittal sinus via the Straight sinus
Transverse sinus.

Question 11

What drains into the sigmoid sinus?

Answer 11

The transverse cinus.