title: Acquired haemoglobin H disease, complicating a myeloproliferative syndrome: a case report.
abstract: A case of acquired haemoglobin H disease in association with a myeloproliferative disorder is described. Severe haemolysis with hypochromic microcytic anaemia was present. Haemoglobin H formed 18% of the circulating haemoglobin and 60% of the red cells showed multiple inclusions on incubation with brilliant cresyl blue. Blood film and absolute red cell values from a previous unrelated illness were normal, proving the acquired nature of the haemoglobin abnormality. Alpha/beta chain synthesis was measured in vitro and the degree of imbalance (alpha/beta ratio 0.39) was similar to that seen in the inborn thalassaemic disorder. A small proportion of red cells showed i-antigen reactivity but their haemoglobin H content was no different from the majority of cells which were l-antigen positive.
mesh_terms: D000368:Aged; D000747:Anemia, Hypochromic / Q000209:etiology; D000941:Antigens; D006447:Hemoglobin H / Q000096:biosynthesis; D006453:Hemoglobinopathies / Q000150:complications*; D006461:Hemolysis; D006801:Humans; D008297:Male; D009196:Myeloproliferative Disorders / Q000150:complications*; D013577:Syndrome
chemical_list: D000941:Antigens; D006447:Hemoglobin H