label: thrombotic thrombocytopenic purpura
label_lc: thrombotic thrombocytopenic purpura
description: Thrombotic thrombocytopenic purpura (TTP) is an aggressive and life-threatening form of thrombotic microangiopathy (TMA) characterized by profound peripheral thrombocytopenia, microangiopathic hemolytic anemia (MAHA) and organ failure of variable severity and is comprised of congenital TTP and acquired TTP.