The tumor and adjacent muscle tissue were excised, formalin‐fixed and paraffin‐embedded (FFPE) into blocks (Figure 5b), and sectioned into 10 μm slices for fluorescence imaging and 4 μm slices for hematoxylin and eosin (H&E) staining and VEGF‐A immunohistochemistry (IHC). This evidence concerns the gene VEGFA and neoplasm.