GPT and Epidermal Inclusion Cyst: In addition, serum total BAs, total bilirubin, alanine aminotransferase (ALT), alkaline phosphatase (ALP) and aspartate aminotransferase (AST) levels increase in patients with EIC, while total cholesterol levels decrease (Chen et al., 2013; Zhou et al., 2016; Li et al., 2017).