Erythrocytosis due to a combination of the high oxygen affinity hemoglobin variant, Hb Olympia [beta20(B2)Val-->Met] with beta- and alpha-thalassemia mutations: first case in the literature

Hemoglobin
Vassiliki KalotychouIoannis Rombos

Abstract

A 40-year-old Greek male was admitted to the hospital because of acute respiratory infection. The patient has been undergoing regular venesection for erythrocytosis for 20 years; he has also been taking oral anticoagulants for thrombosis for 15 years. The molecular defect for erythrocytosis was detected together with the rare Hb Olympia (HBB:c.61G>A) variant. This hemoglobin (Hb) variant was found in combination with two thalassemia-type globin gene defects, namely beta(0)-thalassemia (beta(0)-thal), HBB:c.118C>T and alpha(0)-thal (- -(MED)). This combination of three molecular defects is the first such case reported in the literature.

References

Aug 1, 1996·Hematology and Cell Therapy·H Wajcman, F Galactéros
Dec 5, 1998·American Journal of Hematology·R GalanelloA Cao

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