Seeking info on liver pump chemo at MSKCC

I had my second opinion at MSKCC yesterday and they are recommending I do 4-6 months of chemo doing a combination of a Pump directly into my liver and through an IV before resection.

While I just want this tumor out they want to attack the cancer before surgery.

So confused as my other DR wanted to do surgery first then chemo.

Anyone had a similar experience?

Thanks!