“…Annular atrophic LP is a rare variant of LP and characterized by annular, violaceous plaques with central atrophy. Up to date 10 cases have been described [27,28,29,30,31,32,33,34,35]. Erosive LP is a painful variant of LP with eroded or ulcerated lesions mainly in mucocutaneous sites which is often difficult to treat and may lead to scarring [36,37,38].…”