Coexistent Variegate Porphyria and Porphyria Cutanea Tarda

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Abstract
VARIEGATE porphyria is inherited as an autosomal dominant disorder with the clinical characteristics of cutaneous involvement and acute attacks, although these features do not always accompany one another and many who carry the gene are asymptomatic throughout their lives.1 2 3 Porphyria cutanea tarda (also known as symptomatic porphyria) is thought to have two forms4: One is clearly inherited in an autosomal dominant manner, and the other is a sporadic disorder whose hereditary characteristics, if any, remain unclear. The major clinical characteristics of both forms are cutaneous lesions identical to those described for variegate porphyria,1 but an acute attack never occurs. . . .