Cyclopia with trisomy 13 under special consideration of dermatoglyphics and flexion creases

Report on a case of cyclopia with trisomy 13 (Patau-syndrome with cyclopia completa microphthalmica) and survey of relevant cases published in literature are presented. In addition to a combination of dermatoglyphic patterns and flexion creases typical for trisomy 13, some--so far not described--varieties are shown, above all a missing triradius d on the left and additional digital flexion creases on three phalanges. The possibility that the last mentioned observation might rather be due to population differences is discussed.