Interestingly, in our study, luminal A was the most common molecular subtype in younger group followed by triple negative, HER2, and luminal B. However, studies of breast carcinoma in younger women belonging to African or American ethnicity show HER2, triple negative, and luminal B subtypes to be more common compared to luminal A, indicating aggressive disease, higher grade, and poorer prognosis [7]. This evidence concerns the gene ERBB2 and breast carcinoma.