Clear Cell Chondrosarcoma
Clear cell chondrosarcoma is a low-grade or a well-differentiated tumor that usually involves epiphyses in the proximal femur or humerus. Numerous trabeculae of woven bone are scattered throughout the tumor. The tumor cells have large vesicular nuclei and abundant clear cytoplasm. Due to its appearance, it may be mistaken for chondroblastoma or osteoblastoma.