So, not liver related.
Endocrine? Pancreas problems. Pancreatic cancer? He’s looking like Jobs did. No way he’d be playing basketball if he had pancreatic cancer though.
We have no way of knowing what the problem really is, and we have no way of ruling anything in or out, truthfully. Even liver problems, because there must be quite a bit of inflammation, iirc, for there to be jaundice.
But I doubt it’s hep c, it could be worms, all I know is he looks sick.