FMN2 and colorectal carcinoma: It is concluded that the expression levels of circ‐FMN2, circ‐LMNB1, and circ‐ZNF609 were higher than those of the healthy control group, their expression was positively correlated with histological grade, lymph node metastasis, and TNM staging, suggesting that circ‐FMN2, circ‐LMNB1, and circ‐ZNF609 are likely to be biomarkers for the diagnosis of CRC.16