Iron overload occurs in all except: (A) Thalassemia, (B) Myelodysplastic syndrome, (C) Polycythemia vera, (D) Sideroblastic anemia
Answer is C. Ref Harrison 19 th ed pg 626, 673 Increased erythropoietin leads to increased haematopoasis and an increased demand for iron producing a state of iron deficiency. Polycythemia vera being a state of increased erythropoietin is a cause of iron deficiency rather than iron overload.