Pseudoporphyria is a photo-induced blistering disorder with increased
skin fragility, caused among others by nonsteroidal antiinflammatory d
rugs. Lesions heal with scarring and milia. Porphyrin screen studies a
re normal in this disease. Histology and immunofluorescence resembles
porphyria cutanea tarda. In this report we describe a cluster of three
cases of naproxen-induced pseudoporphyria, and review briefly previou
sly reported cases induced by naproxen. The majority of reported cases
involve children. Physicans should be aware of this reversible skin d
isorder.