Sideroblastic anemia

• Facts:
  Defective heme synthesis
  
• Diagnosis:
  Increased serum iron
  Decreased total iron binding capacity (TIBC)
  Hypochromic and normocytic anemia
  "Ringed sideroblasts" on peripheral smear
• See Also:
  Anemias
• Associated With:
  Isoniazid (pyridoxine inhibitor)
  
• Differential Diagnosis:
  Iron deficiency anemia