Arterial embolism can cause occlusion in any part of the body. It is a major cause of tissue death from blockage of the blood supply. An embolus lodging in the brain from either the heart or a carotid artery will most likely be the cause of a stroke due to ischemia.The early recognition and operative treatment of embolic arterial occlusion of the extremities is still relatively infrequent. An embolic stroke occurs when a blood clot that forms elsewhere in the body breaks loose and travels to the brain via the bloodstream. When the clot lodges in an artery and blocks the flow of blood, this causes a stroke.The presence of occlusion can be determined noninvasively. Acute limb ischemia (ALI) results from a sudden obstruction in the arterial flow to the extremity due to an embolism or thrombosis. Acute occlusion of the abdominal aorta requires rapid diagnosis and intervention to prevent loss of life or limb. Embolic occlusion of patent foramen ovale is an important cause of false negative microbubble contrast study. Embolic left anterior descending artery occlusion, fulminant pulmonary embolism, and in-transit thrombus in a patent foramen ovale. Old age, atrial fibrillation, severe abdominal pain and synchronous embolus suggest the diagnosis of acute bowel ischaemia.