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hereditary elliptocytosis : ウィキペディア英語版 | hereditary elliptocytosis
Hereditary elliptocytosis, also known as ovalocytosis, is an inherited blood disorder in which an abnormally large number of the patient's erythrocytes (i.e. red blood cells) are elliptical rather than the typical biconcave disc shape. Such morphologically distinctive erythrocytes are sometimes referred to as elliptocytes or ovalocytes. It is one of many red-cell membrane defects. In its severe forms, this disorder predisposes to haemolytic anaemia. Although pathological in humans, elliptocytosis is normal in camelids. ==Historical perspective== Elliptocytosis was first described in 1904, and was first recognised as a hereditary condition in 1932. More recently it has become clear that the severity of the condition is highly variable, and there is much genetic variability amongst those affected.
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