I also remembered he also said that even though the #1 place for a carcinoid TUMOR is the appendix ....it usually does not metastisize to the liver b/c the tumor would need to be larger than 2 mm or cm or something and the appendix is too small for that....so the terminal illeum carcinoid tumor can metastisize to the liver and travel to the right side of the heart leading to flushing, diarrhea,ets, and TIPs.