Naslov
Incidental extra-mammary findings in breast MRI

Autori
Alduk, A.M. ; Prutki, M. ; Stern-Padovan, R.

Izvornik
Clinical Radiology (0009-9260) 70 (2015), 5; 523-527

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo

Ključne riječi
Breast neoplasms, Magnetic resonance, Metastasis

Sažetak
To investigate the frequency, distribution, and nature of incidental extra-mammary findings detected with breast MRI. Materials and methods Incidental findings were defined as unexpected lesions outside the breast, not previously known or suspected at the time of referral. Five hundred consecutive breast MRI studies performed from June 2010 to September 2012 were reviewed in this retrospective study for which the institutional review board granted approval and waived the requirement for informed consent. MRI findings were compared with subsequent diagnostic procedures in order to differentiate benign from malignant lesions. Results One hundred and thirty-eight incidental findings were found in 107 of the 500 (21.4%) examined patients. The most common site was the liver (61/138 ; 44.2%), followed by the lung (24/138 ; 17.4%), mediastinum (22/138 ; 15.9%), pleural cavity (15/138 ; 10.9%), bone tissue (9/138 ; 6.5%), spleen (3/138 ; 2.2%), major pectoral muscle (3/138 ; 2.2%), and kidney (1/138 ; 0.7%). Twenty-five of the 138 (18.1%) incidental findings were confirmed to be malignant, whereas the remaining 113 (81.9%) were benign. Malignant findings were exclusively detected in patients with known breast carcinoma, whereas incidental findings in patients without a history of carcinoma were all benign. Twenty-five of 100 (24.8%) incidental findings among patients with history of breast cancer were malignant. Conclusion Although many of incidental findings were benign, some were malignant, altering the diagnostic work-up, staging, and treatment. Therefore, it is important to assess the entire field of view carefully for abnormalities when reviewing breast MRI studies.

Izvorni jezik
Engleski

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