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Microcalcifications of Breast Tissue: Appearance on Synchrotron Radiation Imaging with 6-µm Resolution

Keiko Imamura1, Norishige Ehara1, Yoichi Inada2, Yoshihide Kanemaki1, Joji Okamoto3, Ichiro Maeda4, Keiko Miyamoto3, Haruki Ogata3, Hisanori Kawamoto3, Yasuo Nakajima1, Mamoru Fukuda3, Keiji Umetani5 and Kentarou Uesugi5

1 Department of Radiology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ward, Kawasaki, Kanagawa 216-8511, Japan.
2 Department of Physics, St. Marianna University School of Medicine, Kawasaki, Japan.
3 Department of Breast Surgery, St. Marianna University School of Medicine, Kawasaki, Japan.
4 Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan.
5 Japan Synchrotron Radiation Research Institute, Kouto, Hyogo 679-5198, Japan.


Figure 1
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  		Fig. 1A —55-year-old woman with intraductal calcification with no malignancy found. Synchrotron radiation image shows two clusters of specks. Compact cluster of 1.4 x 2.1 mm on left is composed of numerous specks; 1.3 x 3.5-mm cluster on right is less compact. Image size is 6.8 x 6.8 mm.

 

Figure 2
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  		Fig. 1B —55-year-old woman with intraductal calcification with no malignancy found. Conventional mammogram shows 10 microcalcifications (five pleomorphic, five amorphous) in group on left and 18 microcalcifications (two pleomorphic, 16 amorphous) in group on right. Image size is 6.8 x 6.8 mm.

 

Figure 3
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  		Fig. 2A —79-year-old woman with mastopathy. Synchrotron radiation with refraction mode image of biopsy specimen shows seven separate round specks measuring 260–310 µm within region measuring 1.6 x 0.7 mm. Image size is 4.8 x 3.9 mm.

 

Figure 4
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  		Fig. 2B —79-year-old woman with mastopathy. Conventional mammogram of biopsy specimen shows three microcalcifications (one pleomorphic [arrow], two amorphous). Five closely distributed specks in A are not resolved but were interpreted as irregularly shaped pleomorphic microcalcification (arrow). Two others are individually categorized as having amorphous shape. Image size is 4.8 x 3.9 mm.

 

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