Ki-67 expression was significantly higher (p = 0.0001; Mann-Whitney U-test) in MMT (median: 27%, 25th-75th percentile: 21.3%-33%) compared to benign neoplasms (median: 15%, 25th-75th percentile: 13%-24%) (Table 2). This evidence concerns the gene MKI67 and benign neoplasm.