IL13RA1 and neoplasm: In these cut-off values, Nu-IL4Rα positivity was significantly associated with age of the patients (p = 0.010), tumor stage (p = 0.040), T category of the stage (p = 0.035), distant metastasis (p = 0.025), histologic grade (p = 0.012), and the expression of Cy-IL4Rα (p < 0.001), Nu-IL13Rα1 (p = 0.011), and Cy-IL13Rα1 (p = 0.004) (Table 1).