BAP1 and neoplasm: Multivariate analysis was performed with the primary tumor site (T), the regional lymph node involvement (N), the presence or otherwise of distant metastatic spread (M), the extent of residual disease (R), differentiation, infiltration, histological type, and BAP1 expression by the Cox proportional hazards model; N (p < 0.001), M (p < 0.01), R (p < 0.001), and BAP1 expression (P < 0.05) were detected as significant prognostic factors.