ERBB2 and neoplasm: However, a higher value of tumour TNR either on CC or MLO view, a positive axillary mass on BSGI, a lower lymphatic echogenicity, a longer transverse or longitudinal diameter of tumour or lymph node, a higher CDFI grade of lymph node, a higher SBR grade, a higher proliferation index (Ki-67), a deeper infiltration, Her-2 positive subtype and the presence of tumour LVI each showed a higher likelihood for ALN metastasis (P < 0.05).