title: Inflammatory vitiligo-like macules that simulate hypopigmented mycosis fungoides.
abstract: Two cases of an inflammatory vitiligo-like condition that simulated mycosis fungoides are reported. Both patients presented acquired hypopigmented macules sharply limited by an erythematous and papular border. The clinical aspect was suggestive of inflammatory vitiligo. Mycosis fungoides was suspected on skin specimens showing a dense band-like lymphocytic infiltrate with discrete nuclear atypias and marked exocytosis. This infiltrate was made of CD3 positive lymphocytes. CD8 positive lymphocytes were numerous in one case, few in the other. There was a loss of melanocytes in the lesional skin and absence of dominant T-cell clones in both cases. No repigmentation was observed after PUVA or local chemotherapy. The authors emphasized that erythematous and papular borders surrounding hypopigmented macules, CD8 positive lymphocytic infiltrate, absence of T-cell clonal rearrangement are helpful to rule out mycosis fungoides.
authors.affiliation: Department of Pathology, Hôpital Henri-Mondor, 51, avenue de Lattre de Tassigny, 94010 Créteil, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Petit
authors.forename: Bernard
authors.initials: B
authors.lastname: Cribier
authors.forename: Martine
authors.initials: M
authors.lastname: Bagot
authors.forename: Janine
authors.initials: J
authors.lastname: Wechsler
mesh_terms: D000328:Adult; D000368:Aged; D001415:Back; D003937:Diagnosis, Differential; D006801:Humans; D017496:Hypopigmentation / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D009182:Mycosis Fungoides / Q000175:diagnosis; D014820:Vitiligo / Q000175:diagnosis