Gliosarcoma
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![Brain_Gliosarcoma2(1).jpg](/slides-13/slides/Brain_Gliosarcoma2(1).jpg)
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Higher magnification of the previous image showing fibrosarcomatous areas in a gliosarcoma. The sarcomatous areas can also show bone, cartilage or muscle differentiation or features of malignant fibrous histiocytoma. Most primary brain tumors rarely metastasize outside the brain; however, gliosarcomas show propensity to spread to liver and lungs via hematogenous route.