title: Persistent and atypical lobules in the human breast may be precancerous.
abstract: Persistent human mammary lobules (PL) remaining after the menopause, and certain atypical lobules (ALA) are morphologically similar to the common preneoplastic hyperplastic alveolar nodule (HAN) of mice of strains having a high incidence of mammary carcinoma. This and other evidence suggest that like the HAN of mice human PL and ALA are precancerous.
mesh_terms: D000818:Animals; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008321:Mammary Glands, Animal / Q000473:pathology*; D051379:Mice; D008815:Mice, Inbred Strains; D011230:Precancerous Conditions / Q000175:diagnosis / Q000473:pathology*