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Lichen Planus Showing Columnar Epidermal Necrosis
Tae Young Yoon, Gu Chang Lee, Young Gi Kim, Mi Kyeong Kim* and Chi Yeon Kim
Department of Dermatology, College of Medicine & Medical Research Institute, Chungbuk National University, Cheongju, Korea.
*Department of Internal Medicine, College of Medicine & Medical Research Institute, Chungbuk National University, Cheongju, Korea.
We describe a 9-year-old boy who presented with very itchy papules and plaques on both knees. Histologically, focal columnar epidermal necrosis was seen associated with features of classic lichen planus. A literature search using PubMed revealed that only two cases of transfusion-associated lichenoid graft-versus-host reaction showing columnar epidermal necrosis have been previously reported. Our case is the first of lichen planus showing columnar epidermal necrosis. In that lichenoid graft-versus-host reaction is a special form of lichen planus, it is possible to speculate that columnar epidermal necrosis may be a unique feature of lichen planus.
key words: lichen planus; lichenoid graft-versus-host reaction; columnar epidermal necrosis
Received August 7, 2003; Accepted for publication April 6, 2004
Reprint requests to: Tae Young Yoon, M.D., Department of Dermatology, College of Medicine & Medical Research Institute, Chungbuk National University, 62 Gaesin-dong, Heungdeok-gu, Cheongju, Chungbuk 361-711, Korea.
J Dermatol 31 (9): 761-763, 2004
Japanese Dermatological Association
http://www.dermatol.or.jp
