On the second day after thrombolysis (POD4), tumor markers were measured in the patient, and the results showed that alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), carbohydrate antigen 125 (CA125), carbohydrate antigen 15-3 (CA15-3), and squamous cell carcinoma antigen (SCCA) were all within the normal range. This evidence concerns the gene CEACAM5 and neoplasm.