Intraductal Proliferative Lesions of the Breast—Terminology and Biology Matter: Premalignant Lesions or Preinvasive Cancer?
Figure 1
H.E. and immunoreaction for SM-actin—epitheliosis (usual ductal hyperplasia). Intraductal proliferation with irregular, “slit-like” lumina. The immunoreaction shows myoepithelial cells (arrows) surrounding the duct and in the proliferation.
