MGLL and gastrointestinal stromal tumor: When adopting only the NCCN guidelines in the multivariate analysis for DFS (Table 2), MGLL overexpression (p = 0.031, hazard ratio [HR] = 1.869) remained an independent prognosticator of poorer outcomes, as did higher GIST risk (p < 0.0001) and the presence of epithelioid histology (p = 0.001).