The results suggested that PIWIL1 positive expression had no obvious relationship with age (n = 4, OR = 0.77, 95% CI: 0.51–1.16, p=0.21), gender (n = 5, OR = 1.16, 95% CI: 0.77–1.76, p=0.47), tumor size (n = 2, OR = 1.41, 95% CI: 0.73–2.72, p=0.30), differentiation (n = 6, OR = 1.66, 95% CI: 0.76–3.62, p=0.20), and distant metastasis (n = 2, OR = 0.67, 95% CI: 0.23–1.95). Here, PIWIL1 is linked to neoplasm.