title: Atypical poorly differentiated cutaneous T-cell lymphoma with an angiocentric growth pattern presenting histologically as vasculitis.
abstract: We report the case of a 41-year-old patient with an aggressive cutaneous T-cell lymphoma (CTCL) initially presenting on histology as lymphocytic vasculitis. On repeated histological examination and by molecular biology work-up, the diagnosis of an unclassifiable CTCL could eventually be established. This atypical poorly differentiated lymphoma was of a CD4+ CD8- CD56- phenotype and followed an unfavourable course. The patient died despite chemo- and immunotherapy 7 months after the first consideration of lymphoma as diagnosis.
authors.affiliation: Dermatologische Klinik, Universitätsspital Zürich, Zürich, Schweiz.
authors.forename: B
authors.initials: B
authors.lastname: Laetsch
authors.forename: G
authors.initials: G
authors.lastname: Hofbauer
authors.forename: W
authors.initials: W
authors.lastname: Kempf
authors.forename: G
authors.initials: G
authors.lastname: Burg
authors.forename: R
authors.initials: R
authors.lastname: Dummer
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D018450:Disease Progression; D017809:Fatal Outcome; D006801:Humans; D007150:Immunohistochemistry; D016410:Lymphoma, T-Cell, Cutaneous / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D008297:Male; D018570:Risk Assessment; D012878:Skin Neoplasms / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D014657:Vasculitis / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*