1 | 9/M | Left proximal humerus | Cellular lesion with focal areas of calcified osteoid and other areas of spindle cells with a high mitotic rate and focal anaplasia | Lung nodules lesion lumbar body |
2 | 3/F | Right proximal tibia | Malignant stroma producing osteoid hyperchromatic pleomorphic cells. Several multinucleated giant cells resembling osteoclosts are present | No |
3 | 13/M | Right distal femur | Cellular neoplasm with hyperchromotic cells within a mixoid stoma. Cytological atypia is seen. Focal ostoid is seen | No |
4 | 9/F | Right distal femur | Not provided | Lung nodules |