<unk>  is the most common subtype of porphyria. The disease is named because it is a porphyria that often presents with skin manifestations later in life. The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. It is a component of hemoglobin, the molecule that carries oxygen in the blood. Hepatoerythropoietic porphyria has been described as a homozygous form of<unk> , although it can also be caused if two different mutations occur at the same locus.
Porphyria cutanea tarda
Prurigo pigmentosa
Phakomatosis pigmentovascularis
Dermatopathia pigmentosa reticularis
Urticaria pigmentosa
Variegate porphyria
Hepatic porphyria
Phakomatosis pigmentokeratotica