<unk>  (or commonly called<unk>  is a form of porphyria, which varies in severity and can be very painful. It arises from a deficiency in the enzyme ferrochelatase, leading to abnormally high levels of<unk>  in the red blood cells (erythrocytes), plasma, skin, and liver. The severity varies significantly from individual to individual. A clinically similar form of porphyria, known as X-Linked dominant<unk> , was identified in 2008.
Erythropoietic protoporphyria
Xeroderma pigmentosum
Pseudoporphyria
Harderoporphyria
Thalassemia
Scurvy
Hemoglobinemia
Megavitamin-B6 syndrome