What does this mean.... Abnormal appearance of the liver with somewhat heterogeneous uptake and and mild to moderate cholestasis, it's part of scan r?

It is abnormal. This sounds like a liver spleen scan. Heterogeneous uptake is an indication of an abnormal liver but is not specific. Did you have any other tests? These would be helpful in identifying a specific disease. You should consult your doctor as to what it means.
What kind of scan? This sounds like a gall bladder scan? If so these are signs that something is bothering it. Further checking with primary care physician will give you a more definite answer.