Notes:
The left atrial appendage of a woman with atrial fibrillation who suffered a thromboembolic event is shown. Organized 5mm thrombi are apparent. A 5mm thrombus can completely occlude the middle cerebral artery.

Figure reproduced with permission.

Reference 8, figure 1

Copyright (1988) American Heart Association. 

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Acknowledgments:
The content of this presentation was prepared by Dr. Gregory Albers of the Stanford Stroke Center.