Actinic superficial folliculitis; a new entity?

This paper describes two patients who developed an extensive superficial pustular folliculitis on the upper part of the breast, back, shoulders and lateral sides of the upper arms, starting within 24-36 h after exposure to sunlight. Bacteriological, immunohistopathological and photo-experimental investigations failed to reveal a cause for this sunlight-induced dermatosis, which seems not to have been hitherto described.