ADENOCARCINOMA WITH EXTENSIVE NEUROENDOCRINE DIFFERENTIATION ARISING IN AN ILEAL DIVERTICULUM: REPORT OF A CASE ArticleTsujii Toshihiko, Kambara Tsunehito, Shimizu Ken, Tsubaki Masahiro, Kamai Takao, Abe Hideyuki, Umeda Hiroshi, Honma Koichi, Yoshida Ken-IchiroSurgery Today. Vol. 32. 2002. P.. 439-442