Pathology of Stroke Flashcards Preview

MS2 - Nervous System > Pathology of Stroke > Flashcards

Flashcards in Pathology of Stroke Deck (13):
1

What is the distinguishing feature of traumatic hemorrhages (as opposed to non-traumatic hemorrhages)?

Traumatic hemorrhages – by definition – involve superficial structures, such as the meninges and the skull.

2

Nontraumatic hemorrhages involve the _________ portion of the brain.

parenchymal (deep)

3

What is the most common etiology of nontraumatic hemorrhages?

Chronic hypertension

4

The big problem with bleeding into a ventricle is ___________.

clots can occlude the foramina necessary to maintain CSF flow; CSF is always produced, so hydrocephalus develops

5

Define nidus.

(n.) the site of origin; a spot on which things get accumulated

6

What two things make up the lentiform nucleus?

The globus pallidus and the putamen

7

Lacunar lesions are less than ___________ (by definition).

1 cm

8

Tumors can also cause ___________.

nontraumatic hemorrhages

9

Herniations across the midline are called _____________.

trans-falcine herniations

10

Define obtunded.

(adj.) mentally dulled

11

After the anterior communicating artery, in what location are berry aneurysms most commonly seen?

The first branching of the middle cerebral

12

Describe the process of hemorrhagic infarction.

An acute ischemic event occurs (i.e., artery gets blocked) and the ischemia leads to weakening of the artery wall distal to the occlusion. When the area reperfuses, blood can rupture the wall and leak into the parenchyma.

13

What is clinically significant about the lacunar stroke distinction?

Lacunar strokes involve vessels too small to catheterize.

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