FHIT and posterior cortical atrophy: Gene expression data according to the cd1‐gray‐level route length matrix (GLRLM)‐gray‐level variance (GLV) in B‐mode US using the heat map (Figure 3A) and volcano plots (Figure 3B) indicated that the cd1‐GLRLM‐GLV of PCa was associated with the upregulation of fatty acid synthase (FASN) and Fragile Histidine Triad (FHIT).