We detected P‐cadherin positive samples in all malignancy grades of gliomas (Fig. 1B–D), with a higher frequency within grade IV (GBM) tumors (of note, only 1 out of 7 tested grade II gliomas presented detectable levels of P‐cadherin expression, but only at mild levels and in less than 1% of the cells; Fig. 1C,D). The gene discussed is CDH3; the disease is central nervous system cancer.