Microscopic examination of the tissue revealed sheets of cells exhibiting oval to elongated nuclei and moderate eosinophilic cytoplasm with distinct highlighted cell boundaries. Cells were indented with lobulated nuclei. Occasional mitotic figures and scattered giant cells were also identified. Focal areas of fine calcification around individual cells (called chicken wire calcification) were seen. Tumor cells were positive for glycogen on PAS stain. Cells were set in chondroid matrix which was highlighted with PAS stain.