title: Morphologic Mimics of Invasive Lobular Carcinoma.
abstract: Invasive lobular carcinoma of the breast is a relatively common diagnosis. However, other carcinomatous as well as noncarcinomatous neoplasms, either primary or metastatic to the breast, may mimic invasive lobular carcinoma. As treatment may differ, establishing the correct diagnosis is paramount to providing the appropriate care for these patients. This review outlines important mimics of invasive lobular carcinoma and the key clinicopathologic and immunohistochemical features as well as additional studies helpful in establishing their diagnoses.
authors.affiliation: From the Departments of Pathology (Drs Ishikawa, Smith, and Jorns) and Radiology (Dr Pinsky), University of Michigan Hospital and Health Systems, Ann Arbor.
authors.forename: Martin K
authors.initials: MK
authors.lastname: Ishikawa
authors.forename: Renee W
authors.initials: RW
authors.lastname: Pinsky
authors.forename: Lauren B
authors.initials: LB
authors.lastname: Smith
authors.forename: Julie M
authors.initials: JM
authors.lastname: Jorns
mesh_terms: D001940:Breast / Q000378:metabolism / Q000473:pathology*; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000378:metabolism; D018275:Carcinoma, Lobular / Q000175:diagnosis* / Q000378:metabolism; D003937:Diagnosis, Differential; D005260:Female; D050990:GATA3 Transcription Factor / Q000378:metabolism; D006801:Humans; D053552:Keratin-7 / Q000378:metabolism; D009361:Neoplasm Invasiveness; D011960:Receptors, Estrogen / Q000378:metabolism
chemical_list: D050990:GATA3 Transcription Factor; D053552:Keratin-7; D011960:Receptors, Estrogen