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Hereditary Spherocytosis

Hereditary spherocytosis (HS) is the most prevalent cause of hemolytic anemia due to an abnormal red cell membrane and classifies as a type of congenital hemolytic anemia. Oskar Minkowsky first described it in the early 1900s.[1] Erythrocytes are unable to maintain their normal biconcave shape due to genetic mutations in membrane/cytoskeletal proteins that play a role in structural morphologic stability. Deficient or abnormal proteins may include spectrin, ankyrin, band 3, and band 4.2, encoded by different genes.[2][3] The clinical manifestations vary based on the severity of disease and the type of genetic mutation.[1][2][3]

Authors: Zamora, Edgar A.; Schaefer, Catherine A.

Treasure Island (FL): StatPearls Publishing; 2022.

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