Stroke o acute cerebrovascular diseases brain disorders caused by pathologic processes involving blood vessels 3 main pathogenic mechanisms: thrombotic occlusion embolic occlusion IschemIa vascUlar rupTure hemorrhage [] Robbins BASIC PATHOLOGY, 9h EditionStroke [1]  acute cerebrovascular diseases  brain disorders caused by pathologic processes involving blood vessels  3 main pathogenic mechanisms:  thrombotic occlusion  embolic occlusion  vascular rupture ischemia hemorrhage [1]Robbins BASIC PATHOLOGY, 9th Edition