title: Primary CD30+ve cutaneous T-cell lymphoma associated with chronic burn injury in a patient with longstanding psoriasis.
abstract: An increased incidence of lymphoma has been reported in psoriatic patients, but most cases are nodal B-cell lymphoma. We report a unique case of CD30-expressing cutaneous T-cell lymphoma arising from underlying psoriatic plaque after intractable caustic burns and cellulitis in the palm of a patient with generalized chronic plaque psoriasis. Molecular studies confirmed a localized clonal T-cell expansion, and the lesion responded dramatically to multiagent chemotherapy. The case highlighted the possible role of chronic systemic and local T-cell activation in the pathogenesis of primary CD30+ve cutaneous T-cell lymphoma, and the importance of histologic assessment in chronic nonhealing skin lesions.
authors.affiliation: Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong, China.
authors.forename: Chi-Keung
authors.initials: CK
authors.lastname: Yeung
authors.forename: Shing-Yan
authors.initials: SY
authors.lastname: Ma
authors.forename: Henry Hin-Lee
authors.initials: HH
authors.lastname: Chan
authors.forename: Nigel J
authors.initials: NJ
authors.lastname: Trendell-Smith
authors.forename: Wing Y
authors.initials: WY
authors.lastname: Au
mesh_terms: D002056:Burns / Q000150:complications*; D002481:Cellulitis / Q000150:complications / Q000473:pathology; D002908:Chronic Disease; D003937:Diagnosis, Differential; D015329:Gene Rearrangement, T-Lymphocyte; D006801:Humans; D016130:Immunophenotyping; D017728:Lymphoma, Large-Cell, Anaplastic / Q000150:complications* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D011565:Psoriasis / Q000150:complications* / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications* / Q000473:pathology