Hereditary sideroblastic anaemia and autosomal inheritance of erythrocyte dimorphism in a Dutch family

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Abstract
Size distribution curves of red blood cells were used to detect the presence of microcytes in peripheral blood of members of a Dutch family with hereditary side‐roblastic anaemia. 22 of 49 members of this family have a bimodal erythrocyte volume distribution curve and a dimorphic blood picture. The pattern of inheritance of this morphological abnormality is clearly autosomal. It is suggested that the study of red blood cell size distribution curves may add valuable information on the pattern of inheritance in other families with hereditary sideroblastic anaemia.