atypical lobular hyperplasia


atypical lobular hyperplasia

A relatively uncommon lesion of the female breast characterised by lobules containing uniform dyshesive epithelial cells with eccentric nuclei, often accompanied by intracytoplasmic mucin vacuoles (so-called“private acini”); the surrounding myoepithelial cell layer is retained. It is a non-palpable lesion seen in 1% to 3.6% of female breasts and carries a general increase in the risk of future breast cancer.