title: Leucoderma associated with flares of erythrodermic cutaneous T-cell lymphomas: four cases. The French Study Group of Cutaneous Lymphomas.
abstract: We describe four patients with erythrodermic cutaneous T-cell lymphomas (two with erythrodermic mycosis fungoides, and two with Sézary syndrome) who presented with extensive hypopigmented lesions that occurred during flares of their cutaneous disease. These cases must be distinguished from previously described hypopigmented mycosis fungoides where hypopigmented lesions were the sole manifestation of the lymphoma. In two cases a biopsy was performed on hypopigmented skin, showing an infiltrate of atypical lymphocytes with epidermotropism and absence of melanocytes, as in vitiligo. It is suggested that the hypopigmentation could be due to the cytotoxicity of tumour or reactional lymphocytes directed against melanocytes.
authors.affiliation: Department of Dermatology, Hospital Henri-Mondor AP-HP, Paris XII University Créteil, 94010 Créteil, France. bouloc@univ-paris12.fr
authors.forename: A
authors.initials: A
authors.lastname: Bouloc
authors.forename: F
authors.initials: F
authors.lastname: Grange
authors.forename: M H
authors.initials: MH
authors.lastname: Delfau-Larue
authors.forename: M T
authors.initials: MT
authors.lastname: Dieng
authors.forename: M C
authors.initials: MC
authors.lastname: Tortel
authors.forename: M F
authors.initials: MF
authors.lastname: Avril
authors.forename: J
authors.initials: J
authors.lastname: Revuz
authors.forename: M
authors.initials: M
authors.lastname: Bagot
authors.forename: J
authors.initials: J
authors.lastname: Wechsler
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D017496:Hypopigmentation / Q000209:etiology* / Q000473:pathology; D016410:Lymphoma, T-Cell, Cutaneous / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000150:complications*