Among the 13 PAAD tissue samples from Chinese patients, there were five tumor samples with significantly high CASC8 expression, in which four samples were highly differentiated and the cancer stages (according to AJCC Cancer Staging Manual/Edition 8th) were 2B(T2), 1B(T2), 1B(T2), and 2A(T3) separately as the expression level of CASC8 decreased gradually. This evidence concerns the gene CASC8 and cancer.