2nd MRI with contrast on liver

Hi everyone 

I had a ultrasound on my liver and gallbladder turns out I've gallstones but they thought they seen something on my liver the consultant didn't think it was anything to worry about but wanted me to have a MRI with contrast on my liver I had that about 4 weeks ago no news good news so I hoped now I've received a appointment for a 2nd MRI with contrast on my liver no explanation anyone else had this