Triple-negative breast cancer comprised 17% of cases, aligning with global prevalence estimates of 10%–20%.12,13 These tumours demonstrated hallmark features of biological aggression—92% were Grade 3 and the mean Ki-67 index was 52%, which is consistent with the global literature describing TNBC as a poorly differentiated, highly proliferative entity.14 This evidence concerns the gene MKI67 and triple-negative breast carcinoma.