A customized pigmentation SNP array identifies a novel SNP associated with melanoma predisposition in the SLC45A2 gene.

As the incidence of Malignant Melanoma (MM) reflects an interaction between skin colour and UV exposure, variations in genes implicated in pigmentation and tanning response to UV may be associated with susceptibility to MM. In this study, 363 SNPs in 65 gene regions belonging to the pigmentation pathway have been successfully genotyped using a SNP array. Five hundred and ninety MM cases and 507 controls were analyzed in a discovery phase I.

[Atypical aquagenic keratoderma].

Aquagenic keratoderma is an infrequent condition characterized by the appearance of lesions on the palms of the hands a few minutes after contact with water; these lesions vanish a short time after they dry. Published cases were primarily in adolescent females. We present the case of a male patient with lesions that clinically corresponded to aquagenic keratoderma, except that they were distributed on the backs of both hands and on the anterior face of the wrist.