What is the difference between thrombosis and thrombophlebitis

Superficial vein thrombosis (also known as superficial thrombophlebitis) results from thrombus formation in a superficial vein (most commonly the saphenous. Phlebitis (fle-BYE-tis) means inflammation of a vein. Thrombophlebitis is due to one or more blood clots in a vein that cause inflammation. Thrombophlebitis. Superficial vein thrombosis—also called superficial thrombophlebitis—of the lower extremities is a well-known and common disease, often occurring in patients.