title: Histologic features of lichen sclerosus et atrophicus in a surgical scar.
abstract: A 76-year-old woman presented with a 7-mm, hard, pink nodule at the site of an appendectomy scar of more than 70 years' duration. The clinical impression at the time of biopsy was that of a keloid. Surprisingly, light microscopic examination revealed classic histologic features of late-stage lichen sclerosus et atrophicus (LSA) overlying a scar. Elastic tissue stain highlighted the unusual presence of abundant nodules of elastin in the reticular dermis only.
authors.affiliation: Department of Dermatology, Boston University School of Medicine, MA, USA.
authors.forename: A
authors.initials: A
authors.lastname: Allan
authors.forename: W
authors.initials: W
authors.lastname: Andersen
authors.forename: M
authors.initials: M
authors.lastname: Rosenbaum
authors.forename: J
authors.initials: J
authors.lastname: Bhawan
mesh_terms: D000368:Aged; D001062:Appendectomy; D002921:Cicatrix / Q000150:complications / Q000188:drug therapy / Q000473:pathology*; D004547:Elastic Tissue / Q000473:pathology; D005260:Female; D006801:Humans; D018459:Lichen Sclerosus et Atrophicus / Q000188:drug therapy / Q000209:etiology / Q000473:pathology*; D011183:Postoperative Complications / Q000473:pathology; D014222:Triamcinolone Acetonide / Q000627:therapeutic use
chemical_list: D014222:Triamcinolone Acetonide