Metaplastic carcinoma of the breast with high grade spindle cell component with osteoid formation--a rare case report.

Metaplastic carcinoma breast is rare entity with incidence of 0.02% of all breast malignancies. The ranges of age at diagnosis as well as clinical symptoms do not differ from that of conventional invasive ductal breast cancer. We are reporting a rare case diagnosed as metaplastic breast carcinoma on ultrasonography and confirmed histopathologically. The case merits presentation because of its rarity, low frequency of axillary metastasis and difficulty in interpreting the morphological features which correspond with prognosis.