Sole dermatoglyphics of patients with Klinefelter's syndrome (47,XXY).

We have reported the dermatoglyphic findings on the soles of eighty Japanese Klinefelter's syndrome patients (47,XXY). As compared with normal Japanese males and females, three statistically different traits were observed: (1) Distal loops in the hallucal area are smaller, (2) pattern intensity is higher, and (3) the frequency of triradius p is elevated.