definition
A chronic inflammatory disease characterized by shiny, flat-topped, usually flesh-coloured micropapules no larger than the head of a pin. Lesions are localized in the early stages, found chiefly on the lower abdomen, penis, and inner surface of the thighs. Distribution may become generalized as the disease progresses.
UMLS
Disease, Pinkus', Disease, Pinkus' lichen nitidus, Lichen Nitidus, Lichen, nitidus, Pinkus' disease, Pinkus' disease lichen nitidus