title: Nipple simulating a breast mass on a mammogram.
abstract: On a mediolateral mammogram obtained during routine screening, a mass was noted deep within the breast. However, no mass could be palpated, and additional views showed no mass. Observation of the patient during imaging demonstrated the nipple of the opposite breast was inadvertently projected onto the image. Radiologists should be aware of this cause of pseudotumor of the breast.
authors.affiliation: Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO 63110.
authors.forename: L A
authors.initials: LA
authors.lastname: Gilula
authors.forename: J M
authors.initials: JM
authors.lastname: Destouet
authors.forename: B
authors.initials: B
authors.lastname: Monsees
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008327:Mammography; D009558:Nipples / Q000000981:diagnostic imaging*