Cutaneous porphyrias include Porphyria cutanea tarda (PCT) Erythropoietic protoporphyria (EPP) Congenital erythropoietic porphyria (CEP—see table) X-linked protoporphyria (XLPP), sometimes regarded as a clinical variant of EPP Hepatoerythropoietic porphyria (HEP—see table), sometimes regarded as a type of PCT (extremely rare) The acute porphyrias variegate porphyria (VP) and hereditary coproporphyria (HCP) may also have cutaneous manifestations.