“…[2][3][4][5][6][7][8][9][10][11] The frequency of malignancy after a diagnosis of MLL without atypia on core biopsy reported in the literature shows a wide range, due mainly to the small number of patients, with only one series having more than 10 patients. [9][10][11][12][13][14][15][16][17] Although the UK national guidelines recommend categorizing MLL diagnosed on core biopsy of the breast as lesions of uncertain malignant potential (B3), 18,19 the outcome of pure MLL and its positive predictive value for malignancy remains uncertain. In the current study, we aimed to assess the outcome of a large series of pure MLL diagnosed on core biopsy and to review the literature, to provide evidence that can guide further management.…”