The potential variables in univariate analyses for prediction of OS were histology (HR: 0.54, 95% CI: 0.22–1.29, p = 0.170), tumor grade (HR: 1.93, 95% CI: 0.90–4.12, p = 0.09), LVI (HR: 1.75, 95% CI: 0.97–3.15, p = 0.063), and the presence of leptin expression (HR: 1.69, 95% CI: 0.95–2.99, p = 0.071). Here, LEP is linked to neoplasm.