I usually post on colon forum and I was hoping to get some info as to my left shoulder collarbone and lymph node swelling. I have stage 4 colon cancer with lung and liver mets. For the past 4 weeks I have been experiencing chronic left collarbone pain which is now swollen at the end and I have swollen lymph nodes to the left side of my neck. I was wondering if you could please let me know what's happening here. I had an X-ray but it did not show any more nodules in the shoulder region. I understand that it may be related to secondary lung cancer.