Tumor relapse was more common in patients having tumors with Ki-67 index ≥ 2.45% (28 out of 131, 21%, p = 0.001) and lymph node metastases with Ki-67 ≥ 2.85% (19 out of 54, 35%) (p = 0.005). Here, MKI67 is linked to neoplasm.