title: Pseudoporphyria: discussion of etiologic agents.
abstract: Pseudoporphyria describes a photodistributed bullous disorder with negative urinary, fecal, and serum porphyrin studies. Although pseudoporphyria is thought to be extremely rare (less than 100 reported cases4-5), we propose that this entity is underreported. One author (KB) has seen four cases of pseudoporphyria in the past four years. We describe a patient with nonpruritic, nonpainful bulla on the dorsum of his hands. Biopsy revealed a split at the dermal-epidermal junction; laboratory tests and urinary porphyrin evaluation were negative.
authors.forename: Kenneth
authors.initials: K
authors.lastname: Beer
authors.forename: Danielle
authors.initials: D
authors.lastname: Applebaum
authors.forename: Carlos
authors.initials: C
authors.lastname: Nousari
mesh_terms: D000368:Aged; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D003937:Diagnosis, Differential; D003875:Drug Eruptions / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D006225:Hand; D006801:Humans; D008297:Male; D011164:Porphyrias / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D012872:Skin Diseases, Vesiculobullous / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal