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Role of breast magnetic resonance imaging in determining breast as a source of unknown metastatic lymphadenopathy

Authors
Journal
The American Journal of Surgery
0002-9610
Publisher
Elsevier
Volume
178
Issue
6
Identifiers
DOI: 10.1016/s0002-9610(99)00221-4
Disciplines
  • Biology
  • Medicine

Abstract

Abstract Background: Occult primary breast cancer (OPBC) represents less than 1% of breast cancer. In only a third of cases, mammography identifies a primary tumor. We hypothesized that rotating delivery of excitation off-resonance breast magnetic resonance imaging (MRI) would identify or exclude the breast as a primary site in patients with OPBC. Methods: In a retrospective review, 10 patients were identified with OPBC in which MRI was performed. Malignant appearing lesions were correlated with histopathologic findings at biopsy or surgery. Results: MRI identified the primary site in 8 of 10 cases as breast (80%), and excluded it in 2 cases. The extent of disease and location was accurately predicted when compared with histopathologic specimen. Conclusions: As we continue to focus on a cure of early breast cancer, it is imperative that diagnostic images become more sensitive and specific. MRI accurately predicted OPBC in this subset of patients.

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