FOLH1 and prostate intraepithelial neoplasia: Prostate‐specific membrane antigen is highly expressed in prostatic intraepithelial neoplasia, hormone‐dependent PCa, non–hormone‐dependent PCa, and metastases.13, 14 The PSMA antibody was developed to specifically bind to PCa cells in vivo,16, 18 and some studies have shown that the application of PSMA‐targeting or other specific antigen‐targeting MBs can improve the diagnostic accuracy of US.29, 30, 31