“…Emmert reported 47 punctate PPK cases in 17 families; all of these families reported are consistent with autosomal dominant inheritance. Salamon studied a family with eight cases including instances of male-to-male transmission (Salamon et al, 1982), but in the other reports and our two families the distribution between the affected men and women did not differ significantly (Stevens et al, 1996b;Emmert et al, 2003). Generally, disease expression was more severe on the soles than on the palms, probably due to higher pressure to the soles (Emmert et al, 2003).…”