Stromal Fibrosis of the Breast
Miriam Sklair-Levy1,
Taube H. Samuels1,
C. Catzavelos2,3,
Paul Hamilton1 and
Rene Shumak1
1
Department of Medical Imaging, University of Toronto, Sunnybrook & Women's
College Health Sciences Centre, 2075 Bayview Ave., Toronto, Ontario M4N 3M5,
Canada.
2
Department of Pathology, University of Toronto, Sunnybrook & Women's
College Health Sciences Centre, Toronto, Ontario M4N 3M5, Canada.
3
Present address: Department of Pathology, McGill University, 3775 University
Ave., Montreal, Quebec H3A 2B4, Canada.

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Fig. 1. Stromal fibrosis in 67-year-old woman. Sagittal sonogram
shows irregular hypoechoic shadowing in nonpalpable mass, simulating
sonographic features of malignancy.
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Fig. 2A. 51-year-old woman with stromal fibrosis. Sagittal sonogram
shows hypoechoic shadowing.
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Fig. 2B. 51-year-old woman with stromal fibrosis. Transverse sonogram
shows wider shadowing than in A, simulating features of postoperative
parenchymal scar. Excisional biopsy confirmed stromal fibrosis.
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Fig. 3A. 41-year-old woman with infiltrating ductal carcinoma.
Sagittal sonogram of left upper outer quadrant reveals ill-defined hypoechoic
area (arrows) for which diagnosis of stromal fibrosis on
sonographically directed core biopsy was considered concordant.
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Fig. 3B. 41-year-old woman with infiltrating ductal carcinoma.
Transverse sonogram 6 months later shows larger ill-defined area of
inhomogeneous echoes (arrows) corresponding to enlarging area of
clinical concern. Second core biopsy showed infiltrating ductal carcinoma.
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Fig. 4A. 72-year-old woman with infiltrating lobular carcinoma.
Cropped right mediolateral oblique mammogram shows architectural
distortion.
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Fig. 4B. 72-year-old woman with infiltrating lobular carcinoma.
Corresponding sonogram reveals irregular hypoechoic area (arrows)
considered discordant with core diagnosis of stromal fibrosis. Excisional
biopsy proved infiltrating lobular carcinoma.
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Copyright © 2001 by the American Roentgen Ray Society.