Fig. 2.
A 67-year-old woman with glycogen-rich clear cell carcinoma (GRCC) in the left breast. (A) Mediolateral oblique view of mammography shows an oval, indistinct, high density mass at the upper outer quadrant of the left breast. (B) On ultrasound, the mass shows hypoechogenicity and microlobulated margin. (C) Several peripheral vessels are seen at the upper rim on doppler examination. (D) On shear-wave elastography, the mass shows red, heterogeneous elasticity. The mean elasticity value of the mass was 176.8 kPa and the elasticity ratio of the mass to the reference fat tissue was 16.4 measured by placing ROI over the stiffest part of the lesion and surrounding fat tissue. (E) On T2-weighted MRI, the mass shows intermediate to high signal intensity with peritumoral edema in the posterior portion (arrows). (F) On dynamic contrast-enhanced images with subtraction, the mass shows oval shape, irregular margin and rim enhancement.