AURKB and metastatic malignant neoplasm in the lymph nodes: Aurora-B was expressed in the nucleus (Fig. 1) and the positive expression rate in the samples with metastatic disease was 82.1% (23/28), however, in those without lymph node metastasis the rate was only 43.6% (17/39); the difference was identified to be significant (P<0.05) (data not shown).