Phlebitis:Inflammationof avein. With phlebitis, there is infiltration of the walls of the vein and, usually, the formation of a clot (thrombus)inthe vein (thrombophlebitis). Phlebitis in aleg, for example, causes the leg to swell with fluid (edema). Phlebitis can besuperficialand not very serious, or it can bedeepand carry the potential for dislodging blood clots to thelungs.
