Polymorphic light eruption: an immunopathological study of evolving lesions.


Polymorphic light eruption (PLE) papules were successfully induced on previously affected sites in 11 out of 14 patients with PLE 4-20 h after single exposures to suberythemogenic doses of solar simulated radiation. Histological examination of biopsies performed 1 h, 5 h, 24 h, 72 h and 144 h post-irradiation revealed onset within 5 h of perivascular… (More)


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