title: [Lichenoid pseudolymphomatous tattooing reaction].
abstract: A 35 year old patient developed swellings in the red colored areas of his tattoo. Histological examination revealed a lichenoid, pseudolymphomatous infiltrative pattern, that could be distinguished from frank lymphoma by means of electron microscopy, immunohistochemistry and molecular biology. The presence of dermal dendritic cells suggests a dermal-allergic pathogenesis of non-granulomatous tattoo reactions. Therapy of choice is an excision of the inflamed areas.
authors.affiliation: Universitäts-Hautklinik Münster.
authors.forename: U
authors.initials: U
authors.lastname: Amann
authors.forename: T A
authors.initials: TA
authors.lastname: Luger
authors.forename: D
authors.initials: D
authors.lastname: Metze
mesh_terms: D000328:Adult; D001706:Biopsy; D003713:Dendritic Cells / Q000473:pathology; D017449:Dermatitis, Allergic Contact / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D019310:Pseudolymphoma / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D012867:Skin / Q000473:pathology; D013653:Tattooing