Rapid propagation of thrombus in deep vein thrombosis.
D000368:Aged; D005260:Female; D005268:Femoral Vein / Q000000981:diagnostic imaging; D006801:Humans; D010690:Phlebography; D011655:Pulmonary Embolism / Q000209:etiology* / Q000517:prevention & control; D013924:Thrombophlebitis / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D013997:Time Factors