Which sickle cell variants must be distinguished from hemoglobin S (HbS) disease in sickle cell disease (SCD)?

Updated: May 12, 2021
  • Author: Joseph E Maakaron, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Answer

Sickling variants and sickle trait must be distinguished from HbS disease. HbS exists in combination with other hemoglobins in a double heterozygous state. The clinically important diseases involved, observed in patients in the United States, are HbSC and Hb-beta thalassemia.


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