title: Benign breast lesions that mimic malignancy.
abstract: Many benign and reactive lesions of the breast show morphological overlap with malignant lesions. These benign mimics of malignancy often present diagnostic challenges to even the most experienced pathologists. This review focuses on several benign lesions of the breast that mimic malignant entities. For each of these lesions, we describe the key morphological and immunohistochemical features, potential diagnostic pitfalls, and our approach to arriving at the correct diagnosis.
authors.affiliation: Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States.
authors.forename: Vanda F
authors.initials: VF
authors.lastname: Torous
authors.affiliation: Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States.
authors.forename: Stuart J
authors.initials: SJ
authors.lastname: Schnitt
authors.affiliation: Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States. Electronic address: lcollins@bidmc.harvard.edu.
authors.forename: Laura C
authors.initials: LC
authors.lastname: Collins
mesh_terms: D000818:Animals; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000473:pathology*; D003937:Diagnosis, Differential; D004848:Epithelium / Q000473:pathology*; D006801:Humans; D016130:Immunophenotyping / Q000379:methods
keywords: Benign breast lesions; Toker cells; benign lymph node inclusions; collagenous spherulosis; displaced epithelium; epithelioid myofibroblastoma; granular cell tumour; mucocele-like lesion