[Inherited elliptocytosis in a family].

Elliptocytosis is a rare disease which is transmitted autosomally and dominantly and is mainly discovered on the occasion of the regular check up. Except for the changed morphology of erythrocytes at the stage of the cell maturity the disease most often appears without clinical symptoms. The boy and the members of his family presented here had a very mild form of the disease which was not followed by any clinical manifestations except for the changed morphology of the erythrocytes. Discreet laboratory abnormalities were present in the members of the maternal family. The disease is shown as a rare one and is interesting from the hematologist's point of view. The clinical importance of the disease is lower because of its rare occurrance in the human population and because of its rare and slight clinical expressivity.