GPT and Guillain-Barre syndrome: Recalling patient history, we could observe that (i) anti-HCV antibodies were negative and liver enzymes normal 7 weeks before GBS onset; (ii) in the early stages of ICU admission, liver enzymes started to rise, but the elevation remained mild under steroid treatment; (iii) ALT peak occurred 11 weeks after GBS onset; (iv) HCV RNA was already high when anti-HCV antibodies became positive, as in acute hepatitis; and (v) anti-HCV seroconversion was likely delayed or blurred by steroids and immunoglobulin infusions.