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Imaging Features of Metaplastic Carcinoma with Chondroid Differentiation of the Breast

¹ All authors: Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 388-1, Poongnap-dong, Songpa-gu, Seoul, South Korea.

View larger version (92K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1A —48-year-old woman (patient 7 in Table 1) with metaplastic carcinoma with chondroid differentiation. Mammograms show huge indistinct irregular-shaped high-density mass (arrows, A) with extensive amorphous and coarse calcifications (arrowheads, A) that are typical in chondroid calcifications.

View larger version (111K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1B —48-year-old woman (patient 7 in Table 1) with metaplastic carcinoma with chondroid differentiation. Mammograms show huge indistinct irregular-shaped high-density mass (arrows, A) with extensive amorphous and coarse calcifications (arrowheads, A) that are typical in chondroid calcifications.

View larger version (126K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1C —48-year-old woman (patient 7 in Table 1) with metaplastic carcinoma with chondroid differentiation. Sonograms show huge relatively circumscribed complex echoic mass with posterior enhancement and calcifications (arrowheads). Doppler study (not shown) revealed increased vascularity.

View larger version (129K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1D —48-year-old woman (patient 7 in Table 1) with metaplastic carcinoma with chondroid differentiation. Sonograms show huge relatively circumscribed complex echoic mass with posterior enhancement and calcifications (arrowheads). Doppler study (not shown) revealed increased vascularity.

View larger version (82K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1E —48-year-old woman (patient 7 in Table 1) with metaplastic carcinoma with chondroid differentiation. Photograph of cross-section of pathologic specimen shows huge and relatively well-circumscribed mass beneath skin. Cut surface of mass is yellowish-gray, solid, and heterogeneous with multiple foci of hemorrhage and necrosis (arrowheads).

View larger version (95K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1F —48-year-old woman (patient 7 in Table 1) with metaplastic carcinoma with chondroid differentiation. Photomicrograph shows that tumor consists of tumor cell nests and large area of necrosis (arrowheads) admixed with chondroid matrix. Microcalcification (arrows) is also noted. (H and E, x40)

View larger version (156K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2A —54-year-old woman (patient 3 in Table 1) with metaplastic carcinoma with chondroid differentiation. Sonogram shows relatively circumscribed irregular-shaped complex echoic mass with posterior enhancement and calcifications (arrows) and its parallel orientation to skin.

View larger version (159K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2B —54-year-old woman (patient 3 in Table 1) with metaplastic carcinoma with chondroid differentiation. Sonogram shows relatively circumscribed irregular-shaped complex echoic mass with posterior enhancement and calcifications (arrows) and its parallel orientation to skin.

View larger version (141K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2C —54-year-old woman (patient 3 in Table 1) with metaplastic carcinoma with chondroid differentiation. MR image shows relatively circumscribed mass with internal high-signal-intensity portion (arrows) on T2-weighted image (TR/TE, 5,000/120; acquisition matrix, 512 x 512); this high-signal-intensity portion corresponds to chondroid matrix in pathologic specimen (not shown).

View larger version (112K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2D —54-year-old woman (patient 3 in Table 1) with metaplastic carcinoma with chondroid differentiation. On dynamic contrast-enhanced T1-weighted imaging (TR/TE, 7.9/3.9; acquisition matrix, 512 x 512), both early (D) and delayed (E) images show early enhancement and delayed washout and plateau enhancement in peripheral rim with nonenhancing internal components (arrows).

View larger version (114K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2E —54-year-old woman (patient 3 in Table 1) with metaplastic carcinoma with chondroid differentiation. On dynamic contrast-enhanced T1-weighted imaging (TR/TE, 7.9/3.9; acquisition matrix, 512 x 512), both early (D) and delayed (E) images show early enhancement and delayed washout and plateau enhancement in peripheral rim with nonenhancing internal components (arrows).

View larger version (53K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3A —78-year-old woman (patient 12 in Table 1) with metaplastic carcinoma with chondroid differentiation. Reprinted with permission from [13]. Mammograms show partially indistinct irregular-shaped high-density mass (arrows) in upper outer quadrant of right breast.

View larger version (45K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3B —78-year-old woman (patient 12 in Table 1) with metaplastic carcinoma with chondroid differentiation. Reprinted with permission from [13]. Mammograms show partially indistinct irregular-shaped high-density mass (arrows) in upper outer quadrant of right breast.

View larger version (110K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3C —78-year-old woman (patient 12 in Table 1) with metaplastic carcinoma with chondroid differentiation. Reprinted with permission from [13]. Right anterior (C) and right anterior oblique (D) bone scans show intense uptake of 99mTc methylene diphosphonate (arrows) in right breast.

View larger version (105K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 3D —78-year-old woman (patient 12 in Table 1) with metaplastic carcinoma with chondroid differentiation. Reprinted with permission from [13]. Right anterior (C) and right anterior oblique (D) bone scans show intense uptake of 99mTc methylene diphosphonate (arrows) in right breast.

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