A similar situation is observed with CD47, whose overexpression has been found in various tumors and has been proven to be an independent poor prognostic factor in malignant tumors such as lung cancer (32) and gastric cancer (33).However, in our study, neither CD206 nor CD47 was independent prognostic factors for TETs, showing significant correlation only with DFS. This evidence concerns the gene CD47 and lung carcinoma.