MKI67 and metastatic malignant neoplasm in the lymph nodes: In the univariate analysis, variables that were significantly associated with ≥ 3 lymph node metastases included cortical thickness (p < 0.001), longitudinal to transverse ratio (p = 0.001), absence of hilum (p < 0.001), T stage (p = 0.002) and Ki-67 (p = 0.039) (Table 2 and 3).