MKI67 and neoplasm: To further explore the relationships between the intratumoral CE accumulation and clinicopathological parameters, we analyzed the association between intratumoral CE accumulation and the clinicopathological categorical variables: histologic grade (III vs. I-II), TNM stage (III-IV vs. I-II), tumor size > 3 cm, lymph node affected, vascular invasion, tumor necrosis and Ki-67 > 20 %.