Liver alt elevated -mrcp and fibroscan nrml.no hep,drugs,alcohol,not fat, wilsons autoimmune etc what could it be? ~2xuln all common things checked.

AST is normal?: so ALT elevation is the only abnormality? with all negative workup to date? NASH still most likely, even if you're not overweight. if your waist-to-hip ratio is more than 0.8, would consider trying to lose 5-10lbs and see if normalizes. if not, a biopsy may be in order.

May represent ....: A statistical anomaly. ~ 1 out of every 20 lab tests may be above/below the famous "Bell Curve" that describes statistical variability. In addition, your ALT represents a very slight elevation of only 1 test. Typically in significant liver issues you will see a pattern of several enzyme tests often elevated 3x (or more) above normal. The ALT is a momentary "snapshot" that could be WNL with recheck

?normal: many people just dont fall in the normal range of tests, you have ha a lot of tests, might just be you. I would likely just start to follow it over time and not react unless progressive change