COL10A1 and familial pancreatic carcinoma: In addition, according to the AJCC 8th edition pancreatic cancer staging criteria, the frequencies of high COL10A1 expression were T1, 55.6% (5/9); T2, 81.8% (27/33); T3, 90.9% (20/22); and T4, 0 (0), indicating that COL10A1 expression was positively correlated with the tumor T stage.