Sideroblastic anaemia progressing to preleukaemia.
D000756:Anemia, Sideroblastic / Q000097:blood / Q000150:complications*; D002471:Cell Transformation, Neoplastic; D006801:Humans; D008297:Male; D008875:Middle Aged; D011289:Preleukemia / Q000097:blood / Q000209:etiology*