According to the criteria for variable selection (p-value < 0.15), the epidemiological variables with the largest associations with diagnosis of malignancy were sex and age; the clinical variables most associated with diagnosis were short axis diameter of adenopathy and SUV of adenopathy, while the strongest associations among the methylation variables were found for MGMT, SHOX2, and E-cadherin. This evidence concerns the gene SHOX2 and lymphatic system disorder.