Dysarthria-facial paresis syndrome due to long insular artery infarction

Pure dysarthria-facial paresis is a rare stroke syndrome, primarily caused by lesions in the cortical or subcortical bulbar motor area, corona radiata, basal ganglia, internal capsule, and pons [1]. Corona Radiata is supplied by the lenticulostriate arteries (LSAs), long insular arteries (LIAs), and white matter medullary arteries (WMMAs); however, LSA infarctions are the most common [2]. We encountered four cases of dysarthria-facial paresis syndrome and found clear evidence of LIA and WMMA infarctions on coronal images.