Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs43055-022-00761-9/MediaObjects/43055_2022_761_Fig3_HTML.jpg)
A large left breast mass in an 82-year-old woman with mesenchymal differentiation subtype. a The craniocaudal view of mammogram shows a rounded, dense mass with circumscribed margins and mild periareolar skin thickening. b The ultrasound shows an irregular shaped mass with indistinct margins along with complex echotexture and posterior enhancement. c The pathology shows a metaplastic carcinoma with mesenchymal differentiation showing prominent multinucleated giant cells