LOCALIZED, RELAPSING AND PHOTOINDUCED DAR IERS-DISEASE FOLLOWING BLASCHKO LINES

Introduction. Occurence of localized Darier's disease was discussed. W e report one case of photo-induced and localized Darier. Case report. Our patient had had a linear eruption every summer for ten years. Clin ical and photological examinations showed an acantholytic dyskeratosis as well as Darier's disease. Lesions were reproduced during photobiol ogical examinations by UVB phototests. Discussion. Several diagnoses c ould have been considered: Darier's disease or acantholytic dyskeratos is dermatosis as Grover's disease or Hailey-Hailey's disease or acanth olytic dyskeratosis nevus. Clinical features and linear eruption follo wing Blaschko's lines pleads for cutaneous mosaicism of Darier's disea se. Photobiological explorations and literature data shows that UVB ph oto-induced lesions are different from isomorphic response of Koebner after irritant application.