A female of Chinese origin carried the codon 43 (G>T) (: c.130G > T) and codons 71/72 (+A) (: c.216_217insA) mutations of the β-globin gene in , identified during prenatal thalassemia screening. The double in mutations were inherited from her mother. Both of the two carriers behave as a traditional heterozygote for β-thalassemia (β-thal) with microcytosis and a high Hb A level. This case report indicates that the possibility of multiple mutations in in a fetus with thalassemia trait has to be considered in a prenatal screening program.
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