I read your question carefully and I understand your concern. I think he s correct, the brain lesions you describe correspond to her symptoms. The left part of her brain commands her left limbs, that s why the symptoms. Aspirin is the usual treatment to prevent further strokes. Another alternative could be Clopidogrel or combination of Aspirin + Dipyridamole, but Aspirin alone is effective as well. Of course should pay attention to other factors if present, like high blood pressure, diabetes, smoking, obesity, blood lipids. I hope to have been of help.