Answer:
In my case, I was told "non-alcoholic fatty liver."
High blood cholesterol may cause high SGOT/AST and a specific LDH "type" (they can tell from whence the LDH originates) may be elevated. If they said liver, then fatty liver is usually the culprit.
Habitual alcohol or certain medication use may cause fatty liver as well. Losing weight is said to help lower those two. Lowering blood cholesterol is important to help the "fatty liver" lessen it's load.
In my case, years pass and more bloodwork reveals the same, plus leukemia and lymphoma.
I am in poor general health, so I think the high AST & LDH are from the fatty liver and not the cancers.
A CBC will inform your doctor if there are abnormalities that would point him/her away from fatty liver.