In MRI‐invisible tumours, stromal FAP remained prognostic for BCR‐free survival (HR = 1.36, 95% CI: 1.02–1.83, p = 0.038), while epithelial FAP and stromal αSMA were not significantly associated (Table 2 and supplementary material, Figure S2). The gene discussed is ACTA1; the disease is neoplasm.