RT Book, Section A1 Tfayli, Arafat A1 Kojouri, Kiarash A1 George, James N. A2 Boyiadzis, Michael M. A2 Frame, James N. A2 Kohler, David R. A2 Fojo, Tito SR Print(0) ID 1128368349 T1 Thrombotic Thrombocytopenic Purpura/Hemolytic Uremic Syndrome T2 Hematology-Oncology Therapy, 2e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071637893 LK hemonc.mhmedical.com/content.aspx?aid=1128368349 RD 2024/04/16 AB Thrombotic thrombocytopenic purpura (TTP) is defined clinically by the abnormalities caused by systemic thrombotic microangiopathy: thrombocytopenia and microangiopathic hemolytic anemia. Additional clinical features may include neurologic abnormalities, renal failure, and gastrointestinal symptoms Hemolytic-uremic syndrome (HUS) is another clinical presentation of thrombotic microangiopathy. Like TTP, HUS is manifested by thrombocytopenia and microangiopathic hemolytic anemia with the additional abnormality of renal failure. Although it is commonly stated that HUS is manifested primarily by renal failure whereas TTP is manifested primarily by neurologic abnormalities, these 2 syndromes cannot be distinguished clinically, because many patients have both renal failure and severe neurologic abnormalities, or neither. The term HUS is often restricted to children. In adults, all syndromes are referred to as TTP, whether or not neurologic abnormalities or renal failure are present Amorosi EL, Ultmann JE. Medicine (Baltimore) 1966;45:139–159George JN. N Engl J Med 2006;354:1927–1935