title: Subungual Posttraumatic Ectopic Nail.
abstract: Ectopic nail is defined as the malformation of nail tissue in a location other than the usual nail unit. We present a 12-year-old boy with a single dystrophic thumb nail after an injury. The nail was observed under the original nail and it is linked to the original nail plate by longitudinal bridge formation with parallel growth. According to these clinical findings, the diagnosis of subungual posttraumatic ectopic nail was made.
authors.affiliation: Department of Dermatology, Eulji Medical Center, College of Medicine, Eulji University, Seoul, Korea.
authors.forename: Tae Seok
authors.initials: TS
authors.lastname: Kong
authors.affiliation: Department of Dermatology, Eulji Medical Center, College of Medicine, Eulji University, Seoul, Korea.
authors.forename: Young Chae
authors.initials: YC
authors.lastname: Lee
authors.affiliation: Department of Dermatology, Eulji Medical Center, College of Medicine, Eulji University, Seoul, Korea.
authors.forename: Sook-Ja
authors.initials: SJ
authors.lastname: Son
authors.affiliation: Department of Dermatology, Eulji Medical Center, College of Medicine, Eulji University, Seoul, Korea.
authors.forename: June Hyunkyung
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Dermatology, Eulji Medical Center, College of Medicine, Eulji University, Seoul, Korea.
authors.forename: Tae Young
authors.initials: TY
authors.lastname: Han
mesh_terms: D002648:Child; D002828:Choristoma / Q000473:pathology*; D006801:Humans; D008297:Male; D009262:Nails / Q000473:pathology*; D013933:Thumb / Q000293:injuries