ABSTRACT
Contact cheilitis is a common inflammatory disorder of the lips resulting from contact with either irritants or haptens. Exfoliative cheilitis is a lip inflammation associated with thick desquamation/hyperkeratosis and cyclic peeling. The main dermoscopic features of exfoliative cheilitis includes thick yellow/brownish hyperkeratosis that often appears cracked; no vessels are usually evident apart from peripheral sparse dotted vessels. Psoriasis and pemphigus may sometimes affect the lips, giving rise to scaling and crusting, respectively. Lichen planus as a chronic mucocutaneous disease that often involves the oral mucosa. Dermoscopically, classic lichen planus in dark-skinned patients is usually typified by homogeneous grey-white/bluish-white structureless/linear areas, with or without foci of specked-pearly white structures. Dermoscopy may facilitate their recognition by showing a “mosaic” pattern consisting of uniformly distributed dotted/globular vessels surrounded by a white halo. Dermoscopic examination usually shows three zones: a central yellowish-red area surrounded by a whitish structureless region and a rim of erythema.
