ERBB2 and inflammatory breast carcinoma: However, the median values of TAI, LST, and HRD-sum scores were higher in TNBC patients (TAI: 27, LST: 24 and HRD-sum: 56) compared to hormone receptor-positive/HER2 negative and hormone receptor-negative/HER2 positive IBC cases (TAI: 17, LST: 12 and HRD-sum: 38) (Figure 2A).