Choristoma of the breast.
A well-circumscribed breast mass composed of well-organized breast parenchymal elements, dense fibrous tissue, mature hyaline cartilage, fat, and smooth muscle is described, and the pertinent literature is reviewed. This lesion is considered to be a choristoma.
D000328:Adult; D001943:Breast Neoplasms / Q000473:pathology*; D002828:Choristoma / Q000473:pathology*; D005260:Female; D006801:Humans