A condition characterized by a chronically swollen limb, often a leg with stasis dermatitis and ulcerations. This syndrome can appear soon after phlebitis or years later. Postphlebitic syndrome is the result of damaged or incompetent venous valves in the limbs. Distended, tortuous varicose veins are usually present. Leg pain may occur after long period of standing. The disease is post-thrombotic syndrome (MONDO_0005928, a Monarch Disease Ontology identifier). Also known as: postphlebetic syndrome with inflammation, postphlebetic syndrome with ulcer, postphlebetic syndrome with ulcer and inflammation, postphlebitic syndrome, venous stress disorder.