CCAT2 and neoplasm: Recently, many reports showed that innate molecules were participated in tumour developments and prognosis, such as CCAT2 (a kind of long non‐coding RNA, metastasis and prognosis)8 and three miRNAs (potential prognostic biomarker in patients with bladder cancer).9 Molecular imaging developed much quickly, which showed great potential in tumours early diagnosis and treatment based on the change of physical and metabolisms.10 Among them, toll‐like receptors (TLRs) caught great attention.