title: Pathologic quiz case: unilateral breast mass in a 75-year-old woman.
authors.affiliation: Department of Pathology, Ball Memorial Hospital, Muncie, IN, USA.
authors.forename: K E
authors.initials: KE
authors.lastname: Gallagher
authors.forename: H H
authors.initials: HH
authors.lastname: Wu
mesh_terms: D000368:Aged; D001706:Biopsy; D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery; D002467:Cell Nucleus / Q000737:chemistry / Q000473:pathology; D003593:Cytoplasm / Q000737:chemistry / Q000473:pathology; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D007633:Keratins / Q000032:analysis; D008080:Liposarcoma / Q000473:pathology* / Q000601:surgery; D009418:S100 Proteins / Q000032:analysis
chemical_list: D009418:S100 Proteins; D007633:Keratins