Schistocytes in peripheral smear is seen in all except:
DIC
Sickle cell anemia
TTP
HUS
Irregular fragmented red cells appearing as helmet shaped or triangular. Schistocytes are seen in all conditions having Micro or Macro angiopathic hemolytic anemia. Macroangiopathic Hemolytic anemia - Prosthetic cardiac valve transplantation. Sickle cell disease is inherited disease associated with sickled RBCs
Hemoglobinopathies: Sickle cell anemia