Fig. 3: Cases PT5 and PT6 and their mutations.

Light microscopy images of case PT5 show a malignant PT (o) with FA-like areas (k, l) and periductal stromal tumour-like components (m, n). Images of case PT6 show a malignant PT with keratin positive area (r) and stromal areas (p, q, s, t). Diffuse staining for CAM5.2 was observed in some areas.