H19 and metastatic malignant neoplasm in the lymph nodes: Moreover, exosomal H19 expression levels were associated with lymph node metastasis (p = 0.039), distant metastasis (p = 0.008), TNM stages (p = 0.022), ER (p = 0.009), PR (p = 0.018), and Her-2 (p = 0.021).