<prompt> Sideroblastic anemia is caused by all except ?Collegen vascular diseaseIron deficitLead poisoningCutaneous porphyria  <response>: Ans. is b i.e., Iron deficit Causes of sideroblastic anemia Hereditary o X-linked recessive sideroblastic anemia. Acquired Hematological Drugs chemicals Others Myelofibrosis INH RA Myelodysplasia Penicillamine Myxedema Acute leukemia Lead SLE Lymphoma Alcohol Iron overload Myeloma Pyridoxin dificiency Porphyria Polycythemia vera Chloromphenicol Hemolytic anemia 