All lesions are suspicious. The follow up Contrasted CT Scan and/or MRI is to see if the lesions is benign. Growth would indicate malignancy. Did the doctor order an AFP [alpha feta protein] lab? This is used as marker for liver cancer.
Being someone faced with a similar predicament I can say that, from my personla experience, that he thinks it COULD/MIGHT be a metastases or a primary malignant tumor but the CT does not provide enough information, so you have to undergo a MRI so he can actually find out what it its.
I hope your exam turns out OK!
Good luck!