Interestingly, about half (53.3%) of the fibroadenoma samples (n = 15; mean age 29.50 ± 11.35 years) expressed GRB7 in the myoepithelial cells, while no GRB7 expression was seen in the fibrocystic changes samples (n = 15; mean age 24.00 ± 8.91 years) (see Figure 2). The gene discussed is GRB7; the disease is Fibroadenoma.