title: Benign breast lesions that simulate malignancy: magnetic resonance imaging with radiologic-pathologic correlation.
abstract: The typical appearance of benign breast conditions on magnetic resonance imaging (MRI) is well established and diagnosis is usually easy. However, cases of benign breast lesions that are extremely difficult to differentiate from malignant breast tumors are occasionally encountered in MRI of the breast because overlap between benign and malignant lesions characteristics is found. This article describes the MRI features of a variety of suspicious breast conditions that were confirmed to be benign in the histopathologic study. We evaluated both enhancement kinetics and lesion morphological information to differentiate malignant from benign lesions. We also correlated the MRI findings with clinical data, and mammographic, ultrasound, and pathologic findings. Lesions evaluated included benign proliferative breast disease, fibroadenoma, intraductal papilloma, granular cell tumor, pseudoangiomatous stromal hyperplasia, fat necrosis, mastitis, inflammatory granuloma, epidermal inclusion cyst, and benign intramammary lymph node.
authors.affiliation: Unidad de Diagnóstico por Imagen MEDTEC, Complejo Hospitalario Universitario de Vigo, Vigo, Spain. aiglesias64@hotmail.com <aiglesias64@hotmail.com>
authors.forename: Alfonso
authors.initials: A
authors.lastname: Iglesias
authors.forename: Mercedes
authors.initials: M
authors.lastname: Arias
authors.forename: Paz
authors.initials: P
authors.lastname: Santiago
authors.forename: Marta
authors.initials: M
authors.lastname: Rodríguez
authors.forename: Jorge
authors.initials: J
authors.lastname: Mañas
authors.forename: Carmen
authors.initials: C
authors.lastname: Saborido
mesh_terms: D047688:Breast Cyst / Q000175:diagnosis; D001941:Breast Diseases / Q000175:diagnosis* / Q000473:pathology; D001943:Breast Neoplasms / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D018226:Fibroadenoma / Q000175:diagnosis; D016586:Granular Cell Tumor / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008413:Mastitis / Q000175:diagnosis; D010212:Papilloma / Q000175:diagnosis