Image 39 of 52



Image Description

Metaplastic breast carcinoma consisting predominantly of undifferentiated spindle cell elements and high-grade chondrosarcoma. Rare foci of adenosquamous differentiation were present in some of the sections.

When metaplastic carcinomas spread to distant site, the metastatic deposits may be composed entirely of epithelial/glandular elements, mesenchymal elements, or a combination of the two. When metaplastic breast carcinomas with chondroid or osseous differentiation spread to the bone, their distinction from primary bone tumors can be exceedingly difficult.

Image 39 of 52