Lichen planus with lesions on the palms and/or soles: prevalence and clinicopathological study of 36 patients

According to the literature, palmoplantar lesions in lichen planus (LP) are uncommon, and do not usually have the classically described clinical morph ology. The aim of this study was to evaluate the prevalence of palmoplantar lesions in LP and to describe the characteristic clinicopathological appea rances of LP affecting palms and soles. Palmoplantar LP with accompanying s kin involvement accounted for 26% of our cases. The presence of very prurig inous erythematous scaly and/or hyperkeratotic plaques, with well-defined e dges, located on the internal plantar arch, without involvement of the fing ertips, and which usually disappear in a few months, is characteristic of p almoplantar LP. Histopathological examination shows the characteristic feat ures of LP.