title: Actinic chickenpox. Light-distributed varicella eruption.
abstract: When areas of the skin which are normally covered become sunburnt just before chickenpox eruption, there occurs a marked intensification of the rash on the freshly burnt parts. This phenomenon is not widely known. Its history, published reports and our original observations on this 'actinic' chickenpox are presented, with comment on its pathogenesis.
mesh_terms: D000328:Adult; D002644:Chickenpox / Q000150:complications / Q000473:pathology*; D002648:Child; D005260:Female; D006801:Humans; D010787:Photosensitivity Disorders / Q000473:pathology*; D013471:Sunburn / Q000150:complications