Hemolytic Uremic Syndrome (HUS) a serious complication of chemotherapy, consisting primarily of microangiopathic hemolytic anemia, thrombocytopenia, and irreversible renal failure, has been reported in patients receiving systemic mitomycin. A syndrome of microangiopathic hemolytic anemia, renal dysfunction and neurological abnormalities was first noted in bone marrow transplant recipients 22 years ago. Now known as transplantation.