lichen sclerosus et atrophicus

lichen scle·ro·sus et atro·phi·cus

noun
\-sklə-ˈrō-səs-et-ˌā-ˈtrō-fi-kəs\

Definition of LICHEN SCLEROSUS ET ATROPHICUS

: a chronic skin disease that is characterized by the eruption of flat white hardened papules with central hair follicles often having black keratotic plugs