Clinical images of chronic GVHD. (A) Lichen planus-like lesions on buccal mucosa showing a lacework of white streaks and erosions. (B) Lichen planus lesions of the nails showing thinning of the nail plate, longitudinal lines, and pterygium formation. (C) Skin lichen planus lesions with shiny and violaceous papules of the back. (D) Edematous erythroderma with lichenoid features evolving into diffuse sclerodermatous changes of the skin.