[2 sets of monozygotic twins concordant for anorexia nervosa].

The case reports at hand describe the discordant and the common characteristics of two pairs of monozygotic twins, concordant for anorexia nervosa. The resulting test scores of psychometric questionnaires including the Eating Attitudes Test (EAT) and the Eating Disorders Inventory (EDI) are descriptively presented and compared with each other. Finally the psychodynamic and the psychogenetic implications considering biogenetic findings are discussed.