PMC5085334_01
Sonographic image of the 2 hypoechoic lobulated masses.
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There was non-mass-like, asymmetrical opacity in the right lower inner quadrant. (Figure 1).
(A, B) CC mammograms. A symmetrical breast density in the right inner lower quadrant is seen (black arrows). Also a popcorn calcification of a fibroadenoma is seen in the right outer quadrant.
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On sonographic examination, there were 2 hypoechogenic, lobulated, well-contoured masses in the right breast at 3 o'clock position with the sizes of 8x7 mm and 6x5 mm (Figure 2A, 2B).
(A, B) Contrast-enhanced dynamic T1-weighted MR subtraction images. Contrast-enhancing area is seen in the right inner breast (drawn line). It extended to the pectoralis muscle and chest wall.
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Contrast-enhanced MRI revealed a nipple-oriented, contrast-enhancing area, 110x30 mm in size, compatible with a widespread intraductal component in the right inner quadrant. (Figure 3A, 3B).
PMC5085334_02
Sonographic image of the palpable hyperechoic breast mass.
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The hyperchogenicity of the mass narrowed the differential diagnosis to lipoma or fat necrosis (Figure 4).