Relationship between Charcot bouchard pseudoaneurysms and lacunar infarcts

[lakerfan38]

Hey guys,

I'm having trouble understanding the difference/relationship between lacunar infarcts and charcot bruchard psuedoaneurysms. Its seems that both are from hypertension, and both are in arteries that supply the same general area. What is the difference between the two and is there any relationship between the two? Like psuedoaneurysm burst--> lacunar infarct

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[ArcGurren]

An aneurysm is a vascular malformation where the blood vessel wall out pouches. In the case of chronic hypertension, these types form within the brain vessels over time.

A lacunar infarction occurs when these aneurysms break sometimes due to malignant hypertension and usually occurs in the deep white matter of the brain. They usually produce either pure motor or pure sensory strokes.

 

[JJMrK]

Lacunar infarcts can be occlusive or hemorrhagic, so not necessarily secondary to a CBA.

 

[tootheye]

Many of salient features seem to overlap. As soon as you see the stem you should be able to differentiate with one key point.

Lacunar- <15mm
, Initial CT may not show much hypo density till it becomes a lacuna,
Deep white mtr,
Thrombotic/embolic

Charco Bou about 1mm,
Small parenchymal hemorrhagic CT ,
Subcortical WHite mtr,
Hemorrhagic