Thrombotic Thrombocytopenic Purpura Thrombotic Thrombocytopenic Purpura http://emedicine.medscape.com/article/206598-overview TTP Thrombotic Thrombocytopenic Purpura Emedicine - Thrombotic Thrombocytopenic Purpura Thrombotic Thrombocytopenic Purpura Thrombotic Thrombocytopenic Purpura (TTP).