["Double porphyrias" (a review of the literature and case report)].

The authors review literature data on porphyrias with combining enzymopathies in heme biosynthesis system, report a case of porphyria cutanea tarda and porphyria variegata registered simultaneously in a male patient clinically and confirmed biochemically. The patient's mother had elevated levels of fecal protoporphyrin suggesting latent porphyria variegata. Biochemical criteria of double porphyrias are discussed.