
AbstractHemoglobin Pôrto Alegre (PA) is a rare hemoglobin resulting from a mutation in β9(A6)Ser → Cys. We describe an asymptomatic Puerto Rican female with combined heterozygosity for Hb PA and Hb S. Since birth, she has maintained normal hemoglobin, bilirubin, LDH levels, and reticulocyte count. Peripheral smear evaluation has revealed normal erythrocyte morphology with no changes suggestive of hemolysis. We conclude that the presence of Hb PA does not increase the risk of red blood cell sickling in patients who carry the Hb S mutation. Pediatr Blood Cancer 2011;56:458–459. © 2010 Wiley‐Liss, Inc.
Heterozygote, Erythrocytes, Hemoglobins, Abnormal, Hemoglobin, Sickle, Infant, Newborn, DNA, Prognosis, Polymerase Chain Reaction, Reticulocyte Count, Mutation, Humans, Female
Heterozygote, Erythrocytes, Hemoglobins, Abnormal, Hemoglobin, Sickle, Infant, Newborn, DNA, Prognosis, Polymerase Chain Reaction, Reticulocyte Count, Mutation, Humans, Female
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