Abbreviations
ALA, aminolevulinate synthase ;ALT, alanine aminotransferase;AST,
aspartate aminotransferase ;DIF, direct immunofluorescence;
EBA,epidermolysis bullosa acquisita; FEP, free erythrocyte
protoporphyrin; GGT, gamma-glutamyl transferase; HCC, Hepatocellular
carcinoma; HIV,human immunodeficiency virus; PAS staining ,periodic
acid-schiff stain;PCT, porphyria cutanea tarda; UROD, uroporphyrinogen
decarboxylase;