FAT1 and neoplasm: The FAT1 expression of tumor front was significantly or nearly related with age (P = 0.0379), metastasis (P = 0.0063), tumor bunding (P = 0.0168), and perineural invasion (P = 0.0535) while the FAT1 expression of tumor center was significantly or nearly related with age (P = 0.0114) and differentiation (P = 0.0203) and metastasis (P = 0.0532).