<unk>  is a very rare form of<unk> atic porphyria caused by a disorder in both genes which code Uroporphyrinogen III decarboxylase (UROD). It has a similar presentation to porphyria cutanea tarda (PCT), but with earlier onset. In classifications which define PCT type 1 as "sporadic" and PCT type 2 as "familial",<unk>  is more similar to type 2.
Hepatoerythropoietic porphyria
Hepatic porphyria
Erythropoietic porphyria
Variegate porphyria
Acute intermittent porphyria
Aminolevulinic acid dehydratase deficiency porphyria
Harderoporphyria
Porphyria cutanea tarda