I'm rather unclear about the speed of regrowth. From one source (the web?) It was a matter of years, yet talking to a herpetologist (edit: hepatologist. Blame v

I'm rather unclear about the speed of regrowth. From one source (the web?) It was a matter of years, yet talking to a herpetologist (edit: hepatologist. Blame voice recognition) in a pub, she said it can regrow 80% of itself in a matter of weeks. Assuming a healthy liver, how fast is regrowth? Assuming a cirrhosed liver , how would that affect regrowth time? TIA.