ERBB2 and breast cancer: For each subgroup, we analyzed the variability of αSMA_TS interrelation with stromal components (mature/immature blood vessels and tertiary lymphoid structures-TLS) but also with the following clinicopathologic parameters: age, IMC, weight, menopausal status, survival, TNM staging parameters, presence of lymphovascular and perineural invasion, BC molecular subtypes, tumor grade, Nottingham score, HER2 status, and recurrence.