Fig. 1From: A case of primary extraskeletal osteosarcoma of the breastMammography. 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 tumorBack to article page