Hemolytic-uremic syndrome (HUS) is a condition characterized by the breakdown of red blood cells and kidney failure. There are several synonyms for HUS that are commonly used in the medical field. These include: 1. Hemolytic-uremic renal syndrome (HURS) 2. Thrombotic microangiopathy (TMA) 3. Hemolytic uremic syndrome/thrombotic thrombocytopenic purpura (HUS/TTP) 4. Microangiopathic hemolytic anemia (MAHA) 5. Hemolytic uremic syndrome-associated diarrhea (HUS-D) 6. Shiga-toxin associated hemolytic uremic syndrome (ST-HUS) While the different synonyms may be used interchangeably, they may also have slight differences in presentation, etiology, or treatment.