title: Lichen planus with predominant plasma cell infiltrate.
abstract: We herein report the case of a patient with lichenoid plaques on the lower extremities and anonychia of all toenails. Histologically, the eruption showed typical features of lichen planus, with the exceptional finding of a lichenoid infiltrate composed mostly of plasma cells. Only two other similar cases have been reported. The explanation for the numerous plasma cells remains unknown although such cases may represent a new histologic variant.
authors.affiliation: Department of Dermatology, Hospital U. San Carlos, Madrid, Spain.
authors.forename: G
authors.initials: G
authors.lastname: Roustan
authors.forename: M
authors.initials: M
authors.lastname: Hospital
authors.forename: C
authors.initials: C
authors.lastname: Villegas
authors.forename: E
authors.initials: E
authors.lastname: Sanchez Yus
authors.forename: A
authors.initials: A
authors.lastname: Robledo
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008010:Lichen Planus / Q000473:pathology*; D009260:Nail Diseases / Q000473:pathology; D010950:Plasma Cells / Q000473:pathology*; D012867:Skin / Q000473:pathology