An indolent annular plaque on the buttock

A 45-year-old female presented in the outpatient department with a six-year history of an erythematous annular plaque on the buttocks. The lesion started as a papule on the left buttock. It was mild itchy but there was no pain or any discharge. It increased in size gradually and involved both the buttocks reaching its present size in six years. Periodically, she took some topical and systemic treatment, but of no avail. Her systemic review was unremarkable.