For example, Vidal et al. [66] profiled gene expression data of 75 fibroepithelial tumours, including 11 MPT, and demonstrated that the dysregulation of epithelial- or luminal-related genes such as CLDN3, CLDN7, or apoptosis- and angiogenesis-related genes such as VIM or PIK3CA can be key molecular characteristics of MPT. Here, PIK3CA is linked to fibroepithelial neoplasm.