Lichen planus showing columnar epidermal necrosis.
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.
Yoon
Tae Young
TY
Department of Dermatology, College of Medicine and Medical Research Institute, Chungbuk National University, 62 Gaesin-dong, Heungdeok-gu, Cheongju, Chungbuk 361-711, Korea.
Lee
Gu Chang
GC
Kim
Young Gi
YG
Kim
Mi Kyeong
MK
Kim
Chi Yeon
CY
D002648:Child; D003937:Diagnosis, Differential; D004817:Epidermis / Q000473:pathology; D006086:Graft vs Host Disease / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007717:Knee; D008010:Lichen Planus / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D009336:Necrosis