label: Hepatoerythropoietic Porphyria
label_lc: hepatoerythropoietic porphyria
description: A very rare form of porphyria cutanea tarda. It is characterized by deficiency of the enzyme uroporphyrinogen decarboxylase. Signs and symptoms appear early in childhood and include extreme photosensitivity in the sun exposed areas of the skin with blistering and scar formation.