The reported prevalence of<unk>  is about 1:25,000. Females are twice as likely to be affected as males. The disease occurs in all ethnicities, but Afrikaners are more likely to have<unk>  as a result of a founder effect (i.e., higher prevalence in the small group of people from whom Afrikaners descend).
Pseudoxanthoma elasticum
Nodular lichen myxedematosus
Keratosis pilaris
Erythrokeratodermia variabilis
Keratosis pilaris atrophicans
Dystrophic calcinosis cutis
Granuloma annulare
Dermatosis neglecta