| A very rare severe non-syndromic hypochromic anemia, which is characterized by transfusion-dependent hypochromic, poorly regenerative anemia, iron overload, resembling non-syndromic sideroblastic anemia except for increased erythrocyte protoporphyrin levels. It has been reported in 3 siblings to date. Caused by a nonsense heterozygous mutation in the STEAP3/TSAP6 gene. Transmission is most likely recessive with a low expression allele. |