FAP and neoplasm: In multivariate analyses, high FAP expression in tumor cells was an independent predictive factor of both overall survival (OS; HR = 2.57, 95% CI: 1.49–4.42, p < 0.001) and recurrence‐free survival (RFS; HR = 2.13, 95% CI: 1.38–3.29, p < 0.001).