Benign
Chondromesenchymal hamartoma of chest wall
Simple bone cyst
Fibrous dysplasia
Osteofibrous dysplasia
Fibrocartilaginous mesenchymoma
Malignant
Adamantinoma / Osteofibrous dysplasia–like adamantinoma
Ewing sarcoma
Round cell sarcoma with EWSR1—non-ETS fusions
CIC-rearranged sarcoma
BCOR-altered sarcoma
Pending inclusion
Intra-osseous rhabdomyosarcoma (emerging)