title: Cutaneous B-cell pseudolymphoma due to paraphenylenediamine.
abstract: Lymphomatoid contact dermatitis is a form of pseudolymphoma that was first described in 1976 by Orbaneja et al. Since that initial report, a number of allergens have been reported to cause this type of pseudolymphoma. Most cases involve hyperplasia of T cells. We describe a case of cutaneous B-cell pseudolymphoma due to paraphenylenediamine. This report underscores the importance of thorough history and observation when assessing patients with suspected lymphoproliferative processes.
authors.affiliation: University of Pittsburgh, Department of Dermatology, Pittsburgh, PA 15213, USA.
authors.forename: Kristina
authors.initials: K
authors.lastname: Paley
authors.forename: Larisa J
authors.initials: LJ
authors.lastname: Geskin
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Zirwas
mesh_terms: D000368:Aged; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis / Q000209:etiology / Q000276:immunology / Q000473:pathology; D005500:Follow-Up Studies; D006801:Humans; D016393:Lymphoma, B-Cell / Q000175:diagnosis / Q000209:etiology / Q000276:immunology / Q000473:pathology; D008297:Male; D010655:Phenylenediamines; D019310:Pseudolymphoma / Q000175:diagnosis / Q000209:etiology / Q000276:immunology / Q000473:pathology; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D010655:Phenylenediamines; C029728:4-phenylenediamine