In NEN regional lymph nodes, CgA transcripts (77%, 47/61) were detected significantly more frequently than tumor cells on H&E staining (Figure 1a; 54%, 33/61) or CgA protein (Figure 1b; 56%, 34/61) on IHC staining (see Figure 1c; p = 0.02, post-hoc testing H&E vs PCR significant). This evidence concerns the gene CGA and neoplasm.