<unk>  <unk>  is a rare skin disorder. The overall prevalence rate of<unk>  is estimated at 1.2 to 1.9 cases per 1,000,000 population. This is a widespread misinterpretation of a 1992 study saying "the period prevalence rate of<unk>  was estimated to be 1.9 per 1,000,000 population for Massachusetts and 1.2 per 1,000,000 population for Pennsylvania". The authors of that study said clearly "Our estimate of 1.2-1.9 cases per 1,000,000 population should be considered a minimum estimate of the prevalence rate". That estimate was based on the 78 patients involved in the study, not the LvP population. The study recruited 11 patients from Massachusetts and 15 from Pennsylvania . This rare condition has only been studied in depth since 1968.
Lymphomatoid papulosis
Hydrocarbon keratosis
Arsenical keratosis
Pyogenic granuloma
Reactional keratosis
Actinic granuloma
Actinic keratosis
Generalized trichoepithelioma