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Polymorphic light eruption

Deshan F Sebaratnam and Patricia Lowe
Med J Aust 2017; 207 (8): 328. || doi: 10.5694/mja17.00108
Published online: 16 October 2017

A 34-year-old woman presented with a photosensitive rash (Figure). With 10 minutes of exposure to sunlight she developed pruritic, erythematous papules following a strict photodistribution. The eruption had a predilection for sites that were usually photoprotected, such as the forearms, décolletage and trunk. Histopathology showed a lymphocytic infiltrate with dermal oedema. Her presentation was in keeping with polymorphic light eruption. The patient was counselled regarding photoprotection and empiric vitamin D supplementation. Annual “hardening” with narrowband ultraviolet B phototherapy or serial graded exposure to winter sunlight was offered, and she was advised to complete short courses of prednisolone during acute flares.

  • Deshan F Sebaratnam
  • Patricia Lowe

  • Royal Prince Alfred Hospital, Sydney, NSW

Correspondence: deshan@unsw.edu.au

Competing interests:

No relevant disclosures.

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