CDX2 and neoplasm: Conversely, the clinical and pathological revision of the case HCM-CSHL-0608-C17 concluded that the tumor had originated from the small intestine (CDX2+, siNET) (Figures 1B, S1A), had metastasized to the pancreas, and displayed a proliferation index of 3% (G2 tumor) (Figure 1C, Supplementary Table 1).