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KMID : 1114620090060010029
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Journal of the Korean Society for Breast Screening
2009 Volume.6 No. 1 p.29 ~ p.33
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Imaging Findings of Invasive Lobular Carcinoma : Report of 5 Cases
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Lee Jee-Eun
Choi Hye-Young
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Abstract
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Purpose: Invasive lobular carcinoma of the breast (ILC) accounts for between 5-10% of all breast carcinoma. Preoperative diagnosis of ILC may be difficult due to unique pathologic feature. We evaluate the imaging feature of ILC on mammography, ultrasonography (US) and magnetic resonance imaging (MRI).
Materials and Methods: Between August 2005 and September 2008, 5 patients with pathologically proven ILC who had undergone surgery were included. Four patients underwent mammography. All five patients underwent US and MRI.
Results: Mammographic findings were 2 cases of mass, 1 case of architectual distortion and 1 case of asymmetry. On ultrasonography, 4 cases showed ill-defined irregular shaped hypoechoic mass and 1 case showed ill-defined round hypoechoic mass. Most ILC presented on MRI as irregular or spiculated homogeneously enhancing mass, except for 1 case without residual lesion after mammotome excision. Multifocal or multicentric lesions were identified in 2 cases on US and 3 cases on MRI.
Conclusion: Appearance of ILC were mass or architectual distortion or asymmetry on mammography, ill-defined hypoechoic mass on US and irregular or spiculated mass on MRI.
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KEYWORD
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Breast cancer, Invasive lobular carcinoma
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