Keratosis punctata of the palmar creases: case report and prevalence study in Caucasians.

Keratosis punctata of the palmar creases (KPPC) is a variant of keratosis punctata of palms and soles in which lesions are confined to palmar creases. We present a patient with KPPC and study the prevalence of the disease in Caucasians. The survey included 1,001 white patients, that were examined for palmar lesions. We could not find any case that fulfilled the diagnostic criteria for KPPC. We conclude that KPPC is a rare disease among Caucasians but rather common in the black race.