My 39 yr old son was recently diagnosed with nodular lymphocyte dominant lymphoma after 8 months of testing. He has no symptoms but a mass was discovered below his abdomen during an appendectomy. His appendix burst & it was a nasty infection. I am concerned about which treatment is best & also want to make sure the diagnosis is correct. The diagnosis was made at Cornell in NYC. We have also sent all the tests to Sloan Kettering for a second opinion. We are scheduled to go there on Nov.9,2009. Can anyone give me some advice? I don't know what to expect & if I've made a good choice about a 2nd opinion. Also, my son is healthy. He's a fire officer in Westchester county & was a recovery worker after 9/11. He was there a few days. Can this be a contributing factor? If so, any advice how to proceed? Any & all suggestions/advice/first hand knowledge is greatly appreciated.