leptocytosis

The presence of leptocytes in the circulating blood, as in thalassemia, some instances of jaundice (even in the absence of anemia), occasional examples of hepatic disease (in the absence of jaundice), and some patients who have had the spleen removed.

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lep·to·cy·to·sis (lep″to-si-toґsis) the presence of target cells (leptocytes) in the blood.