Source:http://linkedlifedata.com/resource/umls/id/C1704212
NCI: A mass of clotted blood or other formed elements, such as bubbles of air, calcium fragments, etc. brought by the blood from another vessel and forced into a smaller one, thus obstructing the circulation.,NCI: A mass of clotted blood or other formed elements, such as bubbles of air, calcium fragments, etc. brought by the blood from another vessel and forced into a smaller one, thus obstructing the circulation.