Fig. 1. Luminal A type breast cancer of 37-year-old woman. A Fig. 1. Luminal A type breast cancer of 37-year-old woman. A. Right mediolateral oblique mammography shows 2 cm-sized isodense mass with irregular shape and indistinct margin (arrow) on the right lower breast. B. Ultrasonography shows 2.5 cm-sized hypoechoic mass with irregular shape and indistinct margin (arrows) in the right 6 o'clock direction. C. Axial contrast-enhanced T1-weighted MR image with fat suppression shows a 2.5 cm-sized heterogeneously enhancing mass with an irregular shape and margin (arrows). Fig. 1. Luminal A type breast cancer of 37-year-old woman. A. Right mediolateral oblique mammography shows 2 cm-sized isodense mass with irregular shape and indistinct margin (arrow) on the right lower breast… J Korean Soc Radiol. 2017 Jun;76(6):375-385. https://doi.org/10.3348/jksr.2017.76.6.375