A close friend has just been diagnosed with cancer in her arm. Her doc.s tell her it's stage 4, but say they can't tell what type it is - is this usual? I had hodgkin's last year. It was very important in the treatment to know exactly what type it was. Is this not the case for other cancers? Also, regardless of what it is, they've recommended that she has an amputation. Even though I went through/am going through cancer myself, I never had to deal with that, and would love any tips on how to help her deal with this massive life changing experience. I know how scared she must be. I just want to help. Thanks.