Should I be concerned about this MRI result?

I have had some issues with my hip (or probably my back) and had an MRI because the doctor was going to do an injection for the pain. It turns out I didn’t have the sciatica he thought I had and we still don’t know the cause of my pain. I can deal with that.
What scared me was that they saw a cyst on my liver. I wouldn’t worry to much, but my mom recently died from liver cancer.
Can an MRI tell if a cyst is benign?
The sports medicine doctor didn’t even mention it. I just read it from the report.