In this study, 34/65 tumours (52.3%) were above the threshold (more than 23 Ki67-positive cells per grid area), of which 6 (17.6%) were Patnaik grade I. Some 23 tumours (67.7%) were grade II (22 Kiupel low-grade, 1 Kiupel high-grade), and the remaining 5 (14.7) were grade III. This evidence concerns the gene MKI67 and neoplasm.