extraskelettales Osteosarkom

A case of

primary extraskeletal osteosarcoma of the breast. Mammography. a At the initial visit, it revealed a 1.5-cm coarse heterogeneously high-density calcified lesion at the upper outer portion of the right breast. b About 8 months after our first medical examination, it revealed a slight enlargement of the coarse calcification. c, d About 16 months after our first medical examination, the lesion had grown to 4.5 cm, and new microcalcifications that were fine and irregular in shape and density appeared around the enlarged original coarse calcified tumor

A case of

primary extraskeletal osteosarcoma of the breast. Ultrasonography. A 1.7-cm-diameter relatively smoothly marginated hypoechoic mass containing multiple calcifications

A case of

primary extraskeletal osteosarcoma of the breast. Magnetic resonance imaging. a A 4.5-cm-diameter mass at the upper outer portion of the right breast. b Fat suppression (FS) T2-weighted imaging (WI): A high signal intensity at the periphery and center of the tumor. c Gadolinium (Gd) FS T1WI: A high signal intensity at the periphery of the tumor but a low signal intensity in the central area