(1) Istituto di Microscopia Elettronica Clinica, Università di Bologna, Italy;(2) Istituto di Anatomia e Istologia Patologica, Università di Bologna, Italy
Abstract:
Summary The authors report a case of lobular endocrine neoplasia within fibroadenoma of the breast. The main pathological differences to similar cases previously described are discussed.The histochemical and ultrastructural findings suggest that, in our case, the neoplasia may be a variant of lobular carcinoma in situ.