What are emboli?

Detached solid, liquid or gaseous intravascular mass carried by blood from origin to remote site, most come from a thrombus (thromboembolism) rare fat droplets, air bubbles, nitrogen, atherosclerotic debris (cholesterol), tumor fragment, bone marrow, amniotic fluid... cause partial or complete vascular occlusion, depending on site can stop anywhere in vascular tree, main consequence is ischemic necrosis (infarction) of downstream tissues, while embolization in pulmonary circulation results in hypoxia, hypotension and Righ HF.