Furthermore, by integrating the seven proteins (POSTN, AGR2, SPON2, ASRGL1, DES, CSK, and DCN) discussed above, we achieved an AUC of 0.983 for FF samples and 0.977 for FFPE samples, respectively (Fig. S8a) for the separation of tumor and benign tissue. This evidence concerns the gene SPON2 and neoplasm.